Question

Determine:
a) (6 + x)2 b) (2y – 4)2
Me ajudar por favorrrrrr

Answer 1

Vamos lá !!

Resoluções :

• Letra A

$(6 + x) ^{2}$

$(6 + x) \times (6 + x)$

$36 + 6x + 6x + {x}^{2}$

$\red{\boxed{{x}^{2} + 12x + 36}}$

• Letra B

$(2y - 4) {}^{2}$

$(2y - 4) \times (2y - 4)$

$4 {y}^{2} - 8y - 8y + 16$

$\red{\boxed{4 {y}^{2} - 16y + 16}}$

Bons estudos .

Answer 2

Oie, Td Bom?!

a)

$= (6 + x) {}^{2}$

$= 6 {}^{2} + 2 \: . \: 6x + x {}^{2}$

$= 36 + 12x + x {}^{2}$

$= x {}^{2} + 12x + 36$

b)

$= (2y - 4) {}^{2}$

$= (2y) {}^{2} - 2 \: . \: 2y \: . \: 4 + 4 {}^{2}$

$= 4y {}^{2} - 16y + 16$

Att. Makaveli1996