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Question 241571: Multiplication of Polynomials
Please help me multiply vertically
(x^2-7x+3)(6x^2+4x-8)
Any help will be greatly appreciated. I know how to arrange this in vertical format, but after that step I am getting confused. Thank you
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! Please help me multiply vertically
(x^2-7x+3)(6x^2+4x-8)
Any help will be greatly appreciated. I know how to arrange this in vertical format, but after that step I am getting confused. Thank you
----------------------
top::::: (x^2::::::-7x::::+3)
bottom:::(6x^2:::::+4x::::-8)
-------------------------------------
Multiply each term of "top" by 6x^2 to get:
:::::::::6x^4:::::::-42x^3::::::::+18x^2
---
Multiply each term of "top" by 4x to get:
::::::::::::::::::::+4x^3:::::::::-28x^2::::::+12x
---
Multiply each term of "top" by -8 to get:
::::::::::::::::::::::::::::::::::-8x^2:::::::-56x::::::-24
===============================================================
I have tried to put all "like" terms in the same column so add the terms
in each column to get the final answer:
:::::::::6x^4:::::::-38x^3::::::::-18x^2::::::-44x::::::-24
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Cheers,
Stan H.
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