Question

a) (5x2-4x+7)-(3x2+7x-1)
b) (6x2-6x+9)-(3x2+8x-2)​

Answer 1

Explicação passo-a-passo:

a) (5x²-4x+7)-(3x²+7x-1)

5x²-4x+7-3x²-7x+1

2x²-11x+8

b)(6x²-6x+9)-(3x²+8x-2)

6x²-6x+9-(3x²+8x-2)

6x²-6x+9-3x²-8x+2

3x²-6x+9-8x+2

3x²-14x+9+2

3x²-14x+11