To be solved: 4x(x-7)-5x(x-6)=-3 STEP a million: escalate 4x(x-7) - 5x(x-6) = -3 4x^2 - 28x - 5x^2+30x = -3 STEP 2: SIMPLIFY in reality assemble and upload the like words (4x^2 - 5x^2) + (-28x + 30x) + 3 = 0 -x^2 + 2x + 3 = 0 Now this is a quadratic in x STEP 3: remedy -x^2 + 2x + 3 = 0 you need to discover the climate that could supply you a made of -3 and addition of two i.e., x1*x2 = -3 (a million) x1+x2 = 2 (2) the place x1 and x2 are your recommendations To mutually fulfill equations (a million) and (2) x1 = 3 and x2 = -a million now to envision x1*x2 = 3*-a million = -3 x1 + x2 = 3 + (-a million) = 2 This now solves your equation for x as x = 3 or -a million