Question

Calcule o quadrado da soma de dois termos
a)( 3 + x)²
b)(x + y)²
c)(3a + 3b )²
d)( 3 + 10a)²​

Answer 1

Resposta:

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

$b) \: {(x + y)}^{2} \\ {x}^{2} + 2xy + {y}^{2}$

$c) \: {(3a + 3b)}^{2} \\ 9 {a}^{2} + 18ab + 9 {b}^{2}$

$d) \: {(3 + 10a)}^{2} \\ 9 + 60a + 100 {a}^{2}$