Question

solve it


x+x²+2x=3x+x​

Answer 1

Step-by-step explanation:

x^2–2x=3

=> x^2 -2x -3 = 0 => x^2 -3x + x - 3 = 0 => x(x - 3)+1(x-3) = 0 => (x-3)(x+1) = 0

x = 3 or x = -1

if x = 3,

LHS = 3^2 - 2*3 = 3 = RHS

if x = -1,

LHS = (-1)^2 - 2(-1) = 3 = RHS

so, x = 3, -1 (ANS)