Question

Efetue

a) (x+3y)² =
b) (7x + 1)² =
c) (a³+2bc)²=​

Answer 1

Explicação passo-a-passo:

b)

{(7x + 1)}^{2} = {49x}^{2} + 14x + 1(7x+1)

2

=49x

2

+14x+1

c)

{( {a}^{5} + 2bc) }^{2} = {a}^{10} + 4 {a}^{5} bc + 4 {b}^{2} {c}^{2}(a

5

+2bc)

2

=a

10

+4a

5

bc+4b

2

c

2