SOLUTION: please help me subtract: (12x4 + 7x2 - 6) - (9x4 + 8x2 + 5)

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Question 260742: please help me subtract:
(12x4 + 7x2 - 6) - (9x4 + 8x2 + 5)
Found 2 solutions by jim_thompson5910, richwmiller:
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
%2812x%5E4+%2B+7x%5E2+-+6%29+-+%289x%5E4+%2B+8x%5E2+%2B+5%29 Start with the given expression.


12x%5E4+%2B+7x%5E2+-+6+-+9x%5E4+-+8x%5E2+-+5 Distribute.


%2812x%5E4-+9x%5E4%29+%2B+%287x%5E2-+8x%5E2%29%2B%28+-+6+++-+5%29 Group like terms.


3x%5E4+-x%5E2-11 Combine like terms.


So %2812x%5E4+%2B+7x%5E2+-+6%29+-+%289x%5E4+%2B+8x%5E2+%2B+5%29=3x%5E4+-x%5E2-11

Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
`(12x4 + 7x2 - 6)
- (9x4 + 8x2 + 5)
-6-5=-11
7-8=-1
12-9=3
``3x^4-x^2-11
I am trying to use ` to fill in the spaces for alignment