Questions on Algebra: Polynomials, rational expressions and equations answered by real tutors!

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Question 170110: If I'd have to pay tax on everything I dont understand in algebra, then i would be bankrupted lol maybe someone could explain this to me =)
-3x(x^2+2) (my answer was x^2= -6, but as you might have guessed my answer is wrong)
: If I'd have to pay tax on everything I dont understand in algebra, then i would be bankrupted lol maybe someone could explain this to me =)
-3x(x^2+2) (my answer was x^2= -6, but as you might have guessed my answer is wrong)

Answer by Alan3354(1944) About Me  (Show Source):
You can put this solution on YOUR website!
-3x(x^2+2) (my answer was x^2= -6, but as you might have guessed my answer is wrong)
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-3x(x^2+2)
Mulitply both terms by -3x
-3x(x^2+2) = -3x*x^2 + (-3x)*2
=-3x^3 - 6x