Question

me ajudem pfvr

Calcule :
a) ( x + 2 )( x – 2 )
b) ( x + 5 )(x – 5)
c) ( x – 3 )( x + 3 )
d) ( x – 4 )( x + 4 )
e) ( x + 1 )( x – 1 )
f) (x – 7 )( x + 7 )
g ) ( x + 10)( x – 10)
h) ( x + 8)( x – 8)

​

Answer 1

Resposta:

Explicação passo a passo:

a. (x + 2 )(x - 2) = x²-2x+2x-4 = x²- 4

b. (x + 5)(x - 5) = x²-5x+5x-25 = x²- 25

c. (x -3)(x +3) = x²-3x+3x-9 = x²-9

d. (x - 4)(x+4) = x²-4x+4x-16 = x²- 16

e.(x + 1)(x - 1) = x²-x+x-1 = x²- 1

f.(x - 7)(x + 7) = x²-7x+7x-49 = x²-49

g.(x - 10)(x + 10) = x²-10x+10x-100 = x²- 100

h.(x + 8)(x - 8) = x²-8x+8x-64 = x² - 64