Question

sendo a=4x²+5 e b 2x²-8 calcule o valor de :
A+B

Answer 1

4x²+5+(2x²-8)
4x²+2x²+5-8
6x²-3
x²=-3/6
x²=1/2

Answer 2

a = 4x^2 + 5 b = 2x^2 - 8 a + b = 4x^2 + 5 + 2x^2 - 8 4x^2 + 2x^2 + 5 - 8 6x^2 - 8