SOLUTION: Multiply.
{{{(5x+7)(x^3-x+7)}}}
I got to different answes for it.
1 was {{{5x^2+7x^3-5x^2+28x+49}}}
the other was..... {{{5x^4+7x^3-5x^2+28x+49}}} which one is it?
Algebra.Com
Question 415970: Multiply.
I got to different answes for it.
1 was
the other was..... which one is it?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
(5x+7)(x^3-x+7)
---
= 5x(x^3-x+7) + 7(x^3-x+7)
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= 5x^4-5x^2+35x+7x^3-7x+49
---
= 5x^4 +7x^3 -5x^2 + 28x + 49
=================================
Cheers,
Stan H.
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