![](data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 72 71" width="72"></svg>)
If X3 + 3x2-3x + K has a factor X + 1, then K=______ ．
Let X3 + 3x2-3x + k = (x + 1) a, when x = - 1, - 1 + 3 + 3 + k = 0, the solution is k = - 5
If the polynomial x ^ 3 + 3x ^ 2-kx + 9 has a factor (x + 3), then k =?
-3
It is known that the value of polynomial x2 + 2x + 5 is 7. Find the value of 3x2 + 6x + 3
2 is the square
x^2+2x+5=7
x^2+2x=2
3x^2+6x+3=3(x^2+2x)+3=3*2+3=9
RELATED INFORMATIONS
- 1. If 2 times of x2-x + 1 minus 3x2 + 4x-1 of a polynomial, then the polynomial is
- 2. When x = 0.1, to find the value of polynomial f (x) = X5 power - 3x4 power + 2x3 power - x2 square + 5x + 1, the sum of the times of addition and X method is equal to?
- 3. X1-3x2 + 2x3 = 0 2x1-5x2 + 3x3 = 0 3x1-8x2 + tx3 = 0 t =? General solution of homogeneous matrix
- 4. Find the matrix X so that XA = B, where a = [1 1; 2 1; - 1 1 2], B = [1 2 1; - 1 0 1]
- 5. Solve the matrix equation x-xa = B, where a = (101; 210; - 32 - 3), B = (1 - 21; - 341)
- 6. Let the quadratic form f (x1, X2, x3) = X1 ^ 2 + 3x2 + 2x3 ^ 2 + 4x1x2 + 2x1x3 + 2x2x3, (1) write the matrix of the quadratic form; (2) transform the quadratic form into the standard form by the formula method, and obtain the corresponding full rank transformation
- 7. Given x 2-4x + 1 = 0, find the value of x 2 + X-2 The square of X is the sum of the square of X and the minus second power of X
- 8. The answer is coming soon, (x-1) 2 + 2x (x-1) = 0 2x2-4x-5 = 0 - 3x2-4x + 4 = 0 2 (y + 4) 2 + y (y + 4) = 0 1:（x-1）2+2x（x-1）=0 2:2x2-4x-5=0 3:-3x2-4x+4=0 4:2(y+4)2+y(y+4)=0
- 9. Find the minimum value of the function f (x) = 2x3-3x2 (- 1 ≤ x ≤ 2), You'd better be able to draw
- 10. Function y = 2 ^ (x + 2) - 3x4 ^ x, if x ^ 2 + X
- 11. If X3 + 3x2-3x + K has a factor X + 1, then K=______ ．
- 12. How to simplify 3 √ (X3 + 3x2 + 3x + 1)?
- 13. The roots of equation 2x3-4x2 + 3x-6 = 0 between (- 10,10) are solved by dichotomy
- 14. 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
- 15. 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?
- 16. 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
- 17. 3x2 + 4x-2x2-x + x2-3x-1, where x = 3 Combine the following polynomials and substitute them for evaluation
- 18. On the polynomial (A-4) x3-xb + X-B of X is a quadratic trinomial, then a=______ ，b=______ ．
- 19. When a =? The polynomial (2-3a) x ^ 3-7ax ^ 2-x + 5 is a quadratic trinomial about X
- 20. 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