Q. Solve the equation by factoring:36x+12x2−3x3=0Answer: x=
Rearrange Equation: First, we need to rearrange the equation in standard polynomial form, which is usually written from the highest power to the lowest power of x. So, we rewrite the equation as: −3x3+12x2+36x=0
Factor Out GCF: Next, we can factor out the greatest common factor (GCF) from each term. The GCF in this case is 3x, so we factor it out:3x(−x2+4x+12)=0
Factor Quadratic Expression: Now, we need to factor the quadratic expression inside the parentheses. We are looking for two numbers that multiply to −12 (the constant term) and add up to 4 (the coefficient of the x term). Those numbers are 6 and −2. So, we can write the factored form as: 3x(x−6)(x+2)=0
Set Equations and Solve: To find the solutions, we set each factor equal to zero and solve for x:3x=0 or (x−6)=0 or (x+2)=0
Find Solutions: Solving each equation for x gives us the solutions:x=30 or x=6 or x=−2Simplifying x=30 gives us x=0.So, the solutions are x=0, x=6, and x=−2.
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