Question Solve the quadratic equation Solve by factoring Solve using the quadratic formula Solve by completing the square Load more x1=−2,x2=4 Evaluate 10x2−20x−84=−4Move the expression to the left side 10x2−20x−80=0Factor the expression More Steps Evaluate 10x2−20x−80Rewrite the expression 10x2−10×2x−10×8Factor out 10 from the expression 10(x2−2x−8)Factor the expression More Steps Evaluate x2−2x−8Rewrite the expression x2+(2−4)x−8Calculate x2+2x−4x−8Rewrite the expression x×x+x×2−4x−4×2Factor out x from the expression x(x+2)−4x−4×2Factor out −4 from the expression x(x+2)−4(x+2)Factor out x+2 from the expression (x−4)(x+2) 10(x−4)(x+2) 10(x−4)(x+2)=0Divide the terms (x−4)(x+2)=0When the product of factors equals 0,at least one factor is 0 x−4=0x+2=0Solve the equation for x More Steps Evaluate x−4=0Move the constant to the right-hand side and change its sign x=0+4Removing 0 doesn't change the value,so remove it from the expression x=4 x=4x+2=0Solve the equation for x More Steps Evaluate x+2=0Move the constant to the right-hand side and change its sign x=0−2Removing 0 doesn't change the value,so remove it from the expression x=−2 x=4x=−2Solution x1=−2,x2=4 Show Solution Graph