SOLUTION: y=(x+5)(x²+3x+4)

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Question 1198618: y=(x+5)(x²+3x+4)
Answer by math_tutor2020(3817)   (Show Source): You can put this solution on YOUR website!

I assume you want to expand that out. In the future, please post the verbal instructions.



Let w = x+5

Distribute



Plug in w = x+5

Distribute three times more

Combine like terms

Therefore,

is an identity, i.e. it is a true equation for all real numbers x.

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