Question

Calcule os produtos notáveis:
a) (x+5)² =
b) (2a-8)² =
c) (3xy+3)² =
d) (a - 7)² =
e) (a + c)(a – c) =
f) (x + 5y)(x – 5y) =

Answer 1

a) (x+5)² = =x²+10x+25

b) (2a-8)² = =4a²-32a+64

c) (3xy+3)² = 9x²y²+18xy+9

d) (a - 7)² =a²-14a+49

e) (a + c)(a – c) = a²-c²

f) (x + 5y)(x – 5y) = x²-25y²