Question

Alguém me ajudaa pfvr

Efetue

a) (5x²+3y).(5x-2)

b) (3x+3).(-2x-4)

c) (x+2)²

d) (x-2)²

e) (x+2).(x-2)


ME AJUDEM PFVR​

Answer 1

A)

(5x²+3y)(5x-2) = 25x³-10x²+15xy-6y

B)

(3x+3)(-2x-4) = -6x²-12x-6x-12 = -6x²-6x-12

C)

(x+2)² = (x+2)(x+2) = x²+2x+2x+4 = x²+4x+4

D)

(x-2)² = (x-2)(x-2) = x²-2x-2x+4 = x²-4x+4

E)

(x+2)(x-2) = x²-2x+2x-4 = x²-4