Question

Resolva os produtos notaveis:

a) (x+3)²

b) (2x+1)²

c) (4b+5)²

d) (x-10)²

e) (9y-10)²

Answer 1

$a) \: {(x + 3)}^{2} = \: {x}^{2} + 6x + 9$

$b) \: {(2x + 1)}^{2} = {4x}^{2} + 4x + 1$

$c) \: {(4b + 5)}^{2} = {16b}^{2} + 40b + 25$

$d) {(x - 10)}^{2} = {x}^{2} - 20x + 100$

$e) \: {(9y - 10)}^{2} = {81y}^{2} -180y + 100$