Q. Solve the equation by factoring:36x2−160x−2x3=0Answer: x=
Rewrite in Standard Form: First, let's rewrite the equation in standard form by arranging the terms in descending order of their exponents.The given equation is 36x2−160x−2x3=0.Rearrange the terms to get −2x3+36x2−160x=0.
Factor Out GCF: Next, we factor out the greatest common factor (GCF) from all the terms. The GCF in this case is −2x. So, we factor −2x out of each term to get −2x(x2−18x+80)=0.
Factor Quadratic Expression: Now, we need to factor the quadratic expression inside the parentheses. We are looking for two numbers that multiply to 80 and add up to −18. The numbers that satisfy these conditions are −10 and −8. So, we can write the quadratic as (x−10)(x−8).
Find Roots: The factored form of the equation is now −2x(x−10)(x−8)=0. To find the roots, we set each factor equal to zero and solve for x.
First Factor: Setting the first factor equal to zero gives us −2x=0, which means x=0.
Second Factor: Setting the second factor equal to zero gives us x−10=0, which means x=10.
Third Factor: Setting the third factor equal to zero gives us x−8=0, which means x=8.
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