Question

what are the solutions to equation (2x-3)^2-1

Answer 1

equals what?

Answer 2

i mean equals 1 , sorry

Answer 3

foil the 2x-3 first.

Answer 4

(2x-3)(2x-3)
4x^2-12x+9

Answer 5

then set it equal to zero

Answer 6

4x^2-12x+9=1
4x^2-12x+8=0

Answer 7

double checking- u meant =1, not =-1, right?

Answer 8

yes 1

Answer 9

Simplify, it means that (2x-3) = 1, or 2x = 4, or x = 2.

Answer 10

ok . Then u factor 4x^2-12x+8 (factor a 4 out first- makes life easier.)

Answer 11

so wouldnt it be 1 and 2?

Answer 12

4(x^2-3x+2)
4(x-2)(x-1)
x=2 or x=1

Answer 13

ur right, tera

Answer 14

okay :) thanxx for your help