Question

1) Calcule o produto da soma pela diferença de dois termos:
a) (x + y) . ( x - y) =
b) (y – 7 ) . (y + 7) =
c) (x + 3) . (x – 3) =
d) (2x + 5 ) . (2x – 5) =
e) (3x – 2 ) . ( 3x + 2) =
f) (5x + 4 ) . (5x – 4) =

Answer 1

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

b) (y – 7 ) . (y + 7) =

c) (x + 3) . (x – 3) =

d) (2x + 5 ) . (2x – 5) =

e) (3x – 2 ) . ( 3x + 2) =

f) (5x + 4 ) . (5x – 4) =