Q. Solve for x. Enter the solutions from least to greatest.2x2−2x−180=0 lesser x=□ greater x=□
Write Equation: Write down the given quadratic equation.2x2−2x−180=0We need to find the values of x that satisfy this equation.
Factor Out GCF: Factor out the greatest common factor (GCF) from the quadratic equation.The GCF of 2x2, −2x, and −180 is 2. So we factor out 2 from each term.2(x2−x−90)=0
Set Expression to Zero: Set the factored expression equal to zero and solve for x.Since 2 is not equal to zero, we can ignore it for now and focus on the quadratic expression in the parentheses.x2−x−90=0
Factor Expression: Factor the quadratic expression.We need to find two numbers that multiply to −90 and add up to −1. These numbers are −10 and 9.(x−10)(x+9)=0
Solve for x: Set each factor equal to zero and solve for x.x−10=0 or x+9=0Solving each equation for x gives us:x=10 or x=−9
Write Solutions: Write the solutions in ascending order.The lesser value of x is −9, and the greater value of x is 10.
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