Question

produtos notáveis: Resolver: a) (2-2x)² + (3-2x)²- 2 (x-3) =

b) (5a+3)² + (5a-3)² - 2 (a+5) =

Answer 1

$a) (2-2x)^{2} + (3-2x)^{2} -2(x-3) \\ 4 - 8x + 4x^{2} + 9 - 12x + 4 x^{2} -2x +6 \\ 8 x^{2} -22x+19 \\ \\ b) (5a+3) ^{2} + (5a-3) ^{2} -2(a+5) \\ 25a^{2} + 30a + 9 + 25a^{2}-30a+9 -2a -5 \\ 50 a^{2} -2a+13$

Paz e luz :)