Q. Solve for x. Enter the solutions from least to greatest.x2−8x+7=0 lesser x=□ greater x=□
Identify the quadratic equation: Identify the quadratic equation and its coefficients.The quadratic equation is x2−8x+7=0, where the coefficients are A=1, B=−8, and C=7.
Factor the quadratic equation: Factor the quadratic equation.We need to find two numbers that multiply to give C(7) and add up to give B(−8). The numbers that satisfy these conditions are −1 and −7 because (−1)×(−7)=7 and (−1)+(−7)=−8.
Write the factored form: Write the factored form of the equation.The factored form of the equation is (x−1)(x−7)=0.
Solve for x by setting each factor equal to zero: Solve for x by setting each factor equal to zero.First, set the first factor equal to zero: x−1=0. Then, solve for x by adding 1 to both sides: x=1.
Solve for x using the second factor: Solve for x using the second factor.Set the second factor equal to zero: x−7=0. Then, solve for x by adding 7 to both sides: x=7.
Write the solutions in ascending order: Write the solutions in ascending order.The solutions are x=1 and x=7, with 1 being the lesser value and 7 being the greater value.
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