Question

1. Resolva o produto : (x + y) . (x - y) =
2. Resolva: (x + 5y) . (x - 5y) =
3. Resolva: (2a + b²) . (2a + b²) =

Answer 1

Olá!!

(x+y).(x-y)=

x²-y²

---------------

(x+5y).(x-5y)=

x²-(5y)²=

x²-25y²

----------------

(2a+b²).(2a+b²)=

4a²+2ab²+2ab²+b⁴

Att=Gauzz

Answer 2

Oie, Td Bom?!

1.

$= (x + y) \: . \: (x - y)$

$= x {}^{2} - y {}^{2}$

2.

$= (x + 5y) \: . \: (x - 5y)$

$= x {}^{2} - (5y) {}^{2}$

$= x {}^{2} - 25y {}^{2}$

3.

$= (2a + b {}^{2} ) \: . \: (2a + b {}^{2} )$

$= (2a + b {}^{2} ) {}^{2}$

$= (2a) {}^{2} + 2 \: . \: 2ab {}^{2} + (b {}^{2} ) {}^{2}$

$= 4a {}^{2} + 4ab {}^{2} + b {}^{4}$

Att. Makaveli1996