Question

Dúvida
A) (X + 5) . (X + 2)
B) 2x - (4x + 3)
C) (3x - 1) . X
D) 5x - (-X + 2)

Answer 1

a)$(x+5).(x+2)= x^{2} +2x+5x+10=x^{2} +7x+10$

b)$2x - (4x+3) = 2x -4x + 3 = -2x+3$

c)$(3x-1).x= 3x^{2} -x$

d)$5x-(-x+2)= 5x +x-2 = 6x -2$

Espero ter ajudado :)

Answer 2

Explicação passo-a-passo:

$a)(x + 5).(x + 2) = x {}^{2} + 2x + 5x + 10 = x {}^{2} + 7x + 10$

$b)2x - (4x + 3) = 2x - 4x - 3 = - 2x + 3$

$c)(3x - 1).x = 3x {}^{2} - x$

$d)5x - ( - x + 2) = 5x + x - 2 = 6x - 2$