Q. Solve for all values of x by factoring.x2−5x−44=6Answer: x=
Bring to one side: Bring all terms to one side of the equation to set it equal to zero.x2−5x−44=6Subtract 6 from both sides to get:x2−5x−50=0
Identify coefficients and constant: Identify the coefficients and constant term in the quadratic equation.The quadratic equation is now in the form ax2+bx+c=0, where:a=1 (coefficient of x2)b=−5 (coefficient of x)c=−50 (constant term)
Find two numbers: Find two numbers that multiply to give ac (a∗c) and add to give b. In this case, ac=1∗(−50)=−50 and b=−5. The two numbers that multiply to −50 and add to −5 are −10 and 5. −10∗5=−50a∗c0
Rewrite with two numbers: Rewrite the equation using the two numbers found in Step 3 to split the middle term.x2−10x+5x−50=0Group the terms:(x2−10x)+(5x−50)=0
Factor by grouping: Factor by grouping.Factor out the greatest common factor from each group.x(x−10)+5(x−10)=0Now factor out the common binomial factor (x−10):(x−10)(x+5)=0
Set equal and solve: Set each factor equal to zero and solve for x.x−10=0 or x+5=0Solve each equation:x=10 or x=−5
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