Question

Simplify: 7x2 + x (x + y - 1) – (x - 1) (x - 2) = 0, what is the value of x?

Answer 1

7x2 + x (x + y - 1) – (x - 1) (x - 2)

14+x²+xy-x-(x²-2x-x+2)

14+x²+xy-x-(x²-3x+2)

14x+x²+xy-x-x²+3x-2

12+xy+2x

hope it helps