If the formula 4x Λ 2-ax + 9 is a complete square, then the value of a is ()
twelve
RELATED INFORMATIONS
- 1. How can B & # 178; - 4B + 5 be reduced to (b-2) square + 1 The method and thinking of solving the problem
- 2. Given that x2 + 3x-1 = 0, find the value of x2 + 1 / x2 + 2x-2 / X
- 3. How to solve x2-3x 4 = 0
- 4. Given that X5 + X4 + X3 + x2 + X + 1 = 0, find the value of x2013
- 5. Given X3 + x2 + X + 1 = 0, find the value of 1 + X + x2 + X3 + X4
- 6. If 1 + X + x2 + X3 = 0, find x + x2 + X3 +The value of X2000 (X2 is the square of x)
- 7. (1-A to the power of two) (1-B to the power of two) + 4AB factorization
- 8. If M is a prime number, the third power of m plus 3 is a prime number, and the seventh power of m plus 7 is a prime number, why?
- 9. 6 = 1 + 2 + 3, so 6 is perfect. About 2200 years ago, Euclidean pointed out that the N-1 power of 2 is prime, so the N-1 power of 2 * (the N-1 power of 2) is a perfect number. Please write the next perfect number after 6 according to this conclusion. Why?
- 10. Are there constants P and Q such that X4 + PX2 + Q can be divisible by x2 + 2x + 5? If it exists, find out the value of P and Q, otherwise, explain the reason
- 11. ①(a+b)²-12(a+b)+36;②4x²+4x(m+n)+(m+n)²
- 12. If the value of the polynomial 2x & # 178; - ax + Y & # 178; - 2 (BX & # 178; + 3x-y & # 178; + 5) about X is independent of X, then the value of 5A + B-3 is obtained
- 13. Given the cubic power of the polynomial ax + BX + 4, when x = 2, the value is 8, and when x = - 2, what is the value?
- 14. Given x = 2, the value of the polynomial ax & # 179; + BX + 4 is 8. When x = - 2, what is the value of the polynomial?
- 15. We know that the two squares of the equation 2x + 3x-4 = 0 are x1, X2, and we do not understand the equation Find the value of the third power of X1 + the third power of x2
- 16. The equation 2y-53 + x = 2 is expressed as y with X___ .
- 17. Fill in a quadratic equation of two variables so that the equation group 5x-2y = 1___________ The solution is x = 1, y = 2
- 18. In the binary linear equation 5x + 6y = 30, if x and y are opposite to each other, what is x
- 19. The following equation is transformed into the form where y is represented by the algebraic expression containing x, and then transformed into the form where x is represented by the algebraic expression containing y (1) 2X+5Y=10 (2) X-2Y-6=0
- 20. What do you mean by writing the following equation in the algebraic form of X for y? Express the form of Y with the algebraic expression containing x 1、3x+4y-1=0 2、5x-2y+12=0 Express the form of X with the algebraic expression containing y 1、5x-3y=2 2、3x+4y=12