Q. Solve for x. Enter the solutions from least to greatest.x2+x−42=0 lesser x=□ greater x=□
Identify the quadratic equation: Identify the quadratic equation to be solved.We have the quadratic equation x2+x−42=0. We need to find two numbers that multiply to −42 and add up to 1, which are the coefficients of the x2 and x terms, respectively.
Factor the quadratic equation: Factor the quadratic equation.The two numbers that multiply to −42 and add up to 1 are 7 and −6 because 7×(−6)=−42 and 7+(−6)=1. Therefore, we can factor the quadratic equation as follows:x2+x−42=(x+7)(x−6)=0
Solve for x: Solve for x using the zero product property.If (x+7)(x−6)=0, then either x+7=0 or x−6=0.For x+7=0:x=−7For x−6=0:x=6
Write the solutions: Write the solutions in ascending order.The lesser value of x is −7, and the greater value of x is 6.
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