Question

(2x+3)²=10-(x+4)(x-2)​

Answer 1

Resposta:

(2x+3)²=10-(x+4)(x-2)

(2x+3)(2x+3)=10-(x²-2x+4x-8)

4x²+12x+9=10-(x²+2x-8)

4x²+12x+9=10-x²-2x+8

4x²+12x+9-10+x²+2x-8=0

5x²+14x-9=0

Explicação passo-a-passo: