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Find the LCM of the polynomials. x² – x – 42 x2 + x – 56
Question
Find the LCM of the polynomials.
x² – x – 42
x2 + x – 56
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Mathematics
3 years
2021-08-26T12:47:14+00:00
2021-08-26T12:47:14+00:00 1 Answers
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Answers ( )
Answer:
x^3+7x^2-50x-336 or (x-7)(x+6)(x+8)
Step-by-step explanation:
Factor each equation.
x^2-x-42= (x-7)(x+6)
x^2+x-56= (x-7)(x+8)
The common factor is (x-7), therefore the other factors of the expressions must multiply to find the common factor.
(x-7)(x+6)(x+8)=x^3+7x^2-50x-336.