Q. Solve for all values of x by factoring.x2−4x−60=−3x−4Answer: x=
Rewrite Equation: Rewrite the equation to bring all terms to one side and set it equal to zero.x2−4x−60=−3x−4Add 3x and add 4 to both sides to get:x2−4x+3x−60+4=0Combine like terms:x2−x−56=0
Factor Quadratic: Factor the quadratic equation.We need to find two numbers that multiply to −56 and add up to −1.The numbers −8 and 7 satisfy these conditions because:−8×7=−56−8+7=−1So we can factor the quadratic as:(x−8)(x+7)=0
Solve for x: Solve for x by setting each factor equal to zero.First factor:x−8=0Add 8 to both sides:x=8Second factor:x+7=0Subtract 7 from both sides:x=−7
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