Question

(2x – 1)2 + x.(3x – 2) =

Answer 1

Explicação passo-a-passo:

(2x - 1)² + x. (3x - 2)=

(2x -1) . (2x -1) + 3x² - 2x =

4x² -2x -2x +1 +3x² - 2x =

4x² -4x +1 +3x² - 2x =

4x² +3x² -4x -2x +1=

7x² - 6x +1

Answer 2

…..….↓multiplicação

(2x−1)(2)+x(3x−2)

Distribuir:

=(2x)(2)+(−1)(2)+(x)(3x)+(x)(−2)

=4x+−2+3x²+−2x

Combinar termos semelhantes:

=4x+−2+3x²+−2x

=(3x²)+(4x+−2x)+(−2)

=3x²+2x+−2 resposta!