Q. Solve for x. Enter the solutions from least to greatest.x2+3x−10=0 lesser x=□ greater x=□
Identify the quadratic equation: Identify the quadratic equation to be solved.We have the quadratic equation x2+3x−10=0. We need to find two numbers that multiply to −10 and add up to 3.
Factor the quadratic equation: Factor the quadratic equation.The two numbers that multiply to −10 and add up to 3 are 5 and −2, because 5×(−2)=−10 and 5+(−2)=3.So we can write the equation as (x+5)(x−2)=0.
Solve for x using zero product property: Solve for x using the zero product property.If (x+5)(x−2)=0, then either x+5=0 or x−2=0.For x+5=0:x=−5For x−2=0:x=2
Write the solutions in ascending order: Write the solutions in ascending order.The lesser value of x is −5, and the greater value of x is 2.
More problems from Solve a quadratic equation by factoring