Question

7x^2-x=6 find the sloution

Answer 1

minus 6 both sides
7x²-x-6=0
hmm
using ac method we get
7x²-7x+6x-6=0
group
(7x²-7x)+(6x-6)=0
7x(x-1)+6(x-1)=0
undistribute
(7x+6)(x-1)=0
set to zero


7x+6=0
7x=-6
x=-6/7

x-1=0
x=1


x=-6/7 or 1