Question

x*x-x=12
x multiplied by x subtract by x is equal to 12 then what is the value of x?

Answer 1

x^2-x-12=0
x^2-4x+3x-12=0
x(x-4)+3 (x-4)=0
x-4=0 x+3=0
x =4 x= -3

hope this helps. .....

Answer 2

x^2-x-12=0

x^2 -4x+3x-12=0

x(x -4) +3 (x -4) =0
x+3=0 or x -4 =0
x= - 3 or x=4