Q. Solve the equation by factoring:2x3−30x2+108x=0Answer: x=
Factor GCF: First, we need to factor out the greatest common factor (GCF) from each term of the equation.The GCF of 2x3, −30x2, and 108x is 2x.So we factor out 2x from each term.2x(x2−15x+54)=0
Set Factors Equal: Now we have the factored form 2x(x2−15x+54)=0.To find the solutions, we set each factor equal to zero.First, set the common factor 2x equal to zero:2x=0x=0
Factor Quadratic: Next, we need to factor the quadratic equationx2−15x+54. We look for two numbers that multiply to 54 and add up to −15. These numbers are −9 and −6, since (−9)×(−6)=54 and (−9)+(−6)=−15. So we can write the quadratic as (x−9)(x−6).
Set Quadratic Factors Equal: Now we set each factor of the quadratic equation equal to zero:x−9=0 and x−6=0.Solving for x gives us two more solutions:x=9 and x=6.
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