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Algbrea 2 Math

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1 Answer

Let's factorize the expressions:

x^2 + 7x = x(x + 7) 
        x^2 = x * x
                  ↓
                  x * x * (x + 7) =
LCM of x^2 and x(x + 7) is x^2 (x + 7)

P.S. If two or more expressions contain the same factors with the same base, but different exponent (power) we have to choose the factor with the bigger exponent for LCM.