Question

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

Answer 1

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

x^2 +3x + 2 = x^2  -7x + 12

x^2 - x^2 +3x +7x = 12- 2
10x = 10
x = 1

Answer 2

The answer is one.....