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If the quadratic polynomial x2 + 2kx-3k2 can be divided by X-1, then the value of K is______ ．
∵ the polynomial x2 + 2kx-3k2 can be divided by X-1, ∵ X-1 is the factor of the polynomial x2 + 2kx-3k2, ∵ X-1 = 0, that is, x = 1 is the solution of the polynomial x2 + 2kx-3k2, ∵ 12 + 2k-3k2 = 0, solving the univariate quadratic equation about K, we get K1 = 1, K2 = - 13, so the answer is: k = 1 or K = - 13
Organization of Petroleum Exporting Countries
OPEC
What is the abbreviation of CEO?
The chief executive officer (CEO) is similar to the general manager and President, and is the legal representative of the enterprise. The chief operating officer (COO) is similar to the executive general manager (CFO) and the chief financial officer (CFO) is similar to the financial general manager (CTO)
What is the abbreviation of the chairman of the board of directors? The abbreviation of the chief executive officer is CEO
Chief executive officer
COO (chief operating officer)
CFO (chief financial officer)
CTO (Chief Technology Officer)
CIO (Chief Information Officer)
CEO of Cao (Chief Administrative Officer)
Chairman of the board
The following abbreviations are the International Olympic Committee, the European Union, the North Atlantic Treaty Organization, the Asia Pacific Economic Cooperation, the association of Southeast Asian Nations and the organization of petroleum exporting countries
The abbreviation of the International Olympic Committee is IOC. The abbreviation of the International Olympic Committee is the European Union
Who is short for what
World Health Organization
The meaning of the English abbreviation p
Pass, pass
I dig a hole: the width of the hole is 14 meters, the height is 6.5 meters, the depth is 7 meters, and the inside is 5.3 meters wide trapezoid: how many cubic meters is it?
(14 + 5.3) * 7 * 6.5/2 = 439.075 (m) Note: * is multiplication / division sign
How to calculate a trapezoid as a cube
Cross sectional area × length or bottom area × height
What is the volume of a cubic trapezoid
Are you asking about the volume formula of a round table, like a desk lamp, or a round table: v = [S + s' + √ (SS')] h △ 3 = π H (R ^ 2 + R + R ^ 2) / 3, R - upper bottom radius, R - lower bottom radius, H - height
RELATED INFORMATIONS
- 1. If the quadratic polynomial x ^ 2 + 2kx-3k can be divided by X-1, try to find the value of K Note: it's 3k, not 3K ^ 2
- 2. If the quadratic polynomial x2 + 2x + K can be divided by X-1, then the value of K is?
- 3. If the polynomial X - (A-1) x to the third power + 5 * x to the second power - (B + 3) X-1 does not contain the third power and X term of X, then what is the value of a + B Why B = - 2? What is the relationship between 1 - (B + 3) = 0 and 1 Why not B + 3 = 0
- 4. When a =? The polynomial (2-3a) x ^ 3-7ax ^ 2-x + 5 is a quadratic trinomial about X
- 5. On the polynomial (A-4) x3-xb + X-B of X is a quadratic trinomial, then a=______ ，b=______ ．
- 6. 3x2 + 4x-2x2-x + x2-3x-1, where x = 3 Combine the following polynomials and substitute them for evaluation
- 7. Given that the value of polynomial 3x2-4x + 6 is 9, then the value of polynomial x2 − 43x + 6 is () A. 7B. 9C. 12D. 18
- 8. Do you need to remove the brackets in the question 3x2 - [7x - (4x-3) - 2x Λ 2] 3x2－［7x－（4x－3）-2x∧2］ Do you need to remove brackets in this question? If you need to remove brackets, do you need to use the rule of removing brackets?
- 9. Use Newton's iteration method to find the roots of the following equation near 1.5: 2x3-4x2 + 3x-6 = 0 #include "math.h" main() {float x,x0,f,f1; x=1.5; do{x0=x; f=2*x0*x0*x0-4*x0*x0+3*x0-6; f1=6*x0*x0-8*x0+3; x=x0-f/f1; }while(fabs(x-x0)>=1e-5); printf ("%f\n",x); } I'd like to ask you how F1 = 6 * x0 * x0-8 * x0 + 3 comes from
- 10. The roots of equation 2x3-4x2 + 3x-6 = 0 between (- 10,10) are solved by dichotomy
- 11. Given x2-x-1 = 0, the value of - X3 + 2x2 + 2008 is?
- 12. Given x2-x-1 = 0, the value of - X3 + 2x2 + 2004 is_____ .
- 13. When the power of an integer is n-2x-2, what is the value of the power of an integer
- 14. A polynomial is added to the second power of 3x - the fourth power of 5x - 2x + 1 to get the second power of 3x-x
- 15. Factorization: X (x-1) (X-2) (x-3) - 24
- 16. Factorization of 4 * x ^ 2 * y ^ 2-6 * x ^ 2 * Y-2 * x * y
- 17. 1) Factorization of (x + y) ^ 2 - (x + y) ^ 3 2) (X-Y) ^ 2 - (X-Y) ^ 3 (X-Y) ^ 2 - (Y-X) ^ 3 Factorization 1) (x + y) ^ 2 - (x + y) ^ 3 2) (X-Y) ^ 2 - (X-Y) ^ 3 3 (X-Y) ^ 2 - (Y-X) ^ 3 4) 2 (X-Y) - 3 (Y-X) ^ 2 5) 4ab(a+b)^2-6a^2b(a+b) 6) (x+y)^2(x-y)+(x+y)(x-y)^2 7) 2a(a-3)^2-6a^2(3-a)+8a(a-3) 8) 24xy^2z^2(x+y-z)-32xyz(z-x-y)^2+8xyz^3(z-x-y)
- 18. A factoring problem, ball process and answer 5X²z-20z-10px²+40p
- 19. Factorization: 2x4-x3-6x2-x + 2
- 20. Decompose the following formulas into factors: (1) the square of (a + b) - the square of 4 (a + b) C + 4C