Solve for n. n2−9n+14=0Write each solution as an integer, proper fraction, or improper fraction in simplest form. If there are multiple solutions, separate them with commas. n= ____
Q. Solve for n. n2−9n+14=0Write each solution as an integer, proper fraction, or improper fraction in simplest form. If there are multiple solutions, separate them with commas. n= ____
Identify Equation: Identify the quadratic equation to be solved.The given quadratic equation is n2−9n+14=0. We need to find two numbers that multiply to give 14 and add up to give −9.
Find Numbers: Find two numbers that multiply to 14 and add up to −9. The numbers that satisfy these conditions are −7 and −2 because (−7)×(−2)=14 and (−7)+(−2)=−9.
Rewrite Equation: Rewrite the quadratic equation by splitting the middle term using the numbers found in Step 2. n2−7n−2n+14=0
Factor by Grouping: Factor by grouping.Group the terms to factor by common terms:(n2−7n)−(2n−14)=0n(n−7)−2(n−7)=0
Factor Common Factor: Factor out the common binomial factor.(n−7)(n−2)=0
Set Equal and Solve: Set each factor equal to zero and solve for n.n−7=0 or n−2=0If n−7=0, then n=7.If n−2=0, then n=2.
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