Question

Resolva:
a)x(x - 3) -2 (x-3) = 6
b)x (x + 5) = 25
c) 2x (x - 2 ) =4 -9x
d) (x + 1 (x - 3)

Answer 1

a)x(x - 3) -2 (x-3) = 6
x*2-3x-2x+6=6=
x*2-5x+0


b)x (x + 5) = 25
x*2+5x=25
x*2+5x-25


c) 2x (x - 2 ) =4 -9x
2x*2-4x=4-9x
2x*2+5x-4




d) (x + 1 (x - 3)
x*2-3x+x-3
x*2-2x-3
boa sorte