Question

1) (x + 4) . (x – 4) = 2) (a – 3) (a + 3) = 3) (b + 5) (b – 5) = 4) (2a + 3). (2a – 3) = 5) (3x – 5)(3x + 5) =

Answer 1

OLÁ!!!

Resposta:

1) (x + 4) . (x – 4)

Simplifique

(x + 4) . (x – 4) =x²-4²

calcule

x²-4²=x²-16

RESPOSTA=x²-16

2) (a – 3) (a + 3)

Simplifique o Produto

(a – 3) (a + 3)=a²-3²

Avalie

a²-3²=a²-9

RESPOSTA=a²-9

3) (b + 5) (b – 5)

Simplifique

(b + 5) (b – 5) =b²-5²

Calcule

b²-5²=b²-25

RESPOSTA=b²-25

4) (2a + 3). (2a – 3)

Simplifique

(2a + 3). (2a – 3)=

(2a)²-3²

calcule

(2a)²-3²=4a²-9

RESPOSTA=4a²-9

5)(3x – 5)(3x + 5)

Simplifique

(3x – 5)(3x + 5)=(3x)²-5²

reescreva

(3x)²-5²=9x²-25

RESPOSTA=9x²-25

ESPERO TER AJUDADO

Answer 2

Oie, Td Bom?!

1.

$= (x + 4) \: . \: (x - 4)$

$= x {}^{2} - 4 {}^{2}$

$= x {}^{2} - 16$

2.

$= (a - 3) \: . \: (a + 3)$

$= a {}^{2} - 3 {}^{2}$

$= a {}^{2} - 9$

3.

$= (b + 5) \: . \: (b - 5)$

$= b {}^{2} - 5 {}^{2}$

$= b {}^{2} - 25$

4.

$= (2a + 3) \: . \: (2a - 3)$

$= (2a) {}^{2} - 3 {}^{2}$

$= 4a {}^{2} - 9$

5.

$= (3x - 5) \: . \: (3x + 5)$

$= (3x) {}^{2} - 5 {}^{2}$

$= 9x {}^{2} - 25$

Att. Makaveli1996