Q. Solve for all values of x by factoring.x2−7x−36=−2xAnswer: x=
Rewrite Equation: Rewrite the equation to bring all terms to one side.We start by adding 2x to both sides of the equation to get a standard quadratic equation form.x2−7x−36=−2xx2−7x+2x−36=0x2−5x−36=0
Factor Quadratic: Factor the quadratic equation.We need to find two numbers that multiply to −36 and add up to −5. The numbers that satisfy these conditions are −9 and 4 because −9×4=−36 and −9+4=−5.So, we can write the factored form as:(x−9)(x+4)=0
Solve for x: Solve for x by setting each factor equal to zero.First factor:x−9=0x=9Second factor:x+4=0x=−4
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