# SOLUTION: im trying to solve tis problem and find the least common multiple of each pair of polynomials, please help! 2x^2-18 and 5x^3+30x^2+45x

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 Question 392841: im trying to solve tis problem and find the least common multiple of each pair of polynomials, please help! 2x^2-18 and 5x^3+30x^2+45xAnswer by stanbon(57219)   (Show Source): You can put this solution on YOUR website!find the least common multiple of each pair of polynomials, please help! --- Factor each expression 2x^2-18 = 2(x^2-9) = 2(x-3)(x+3) ---------------------------- 5x^3+30x^2+45x = 5x(x^2+6x+9)= 5x(x+3)^2 ---- The lcm must have each of the factors in their highest power: --- lcm = 2*5*x(x-3)(x+3)^2 ============================ Cheers, Stan H.