SOLUTION: I have to completely factor this {{{ (x^2-9)^2 + 8x (x^2-9) }}} thank you!

Question 970385: I have to completely factor this

thank you!
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Let

will turn into

Factor out the common term Q to get

-------------------------------------------------------

replace every Q with x^2 - 9

Rearrange terms

Factor the first (difference of squares rule)

Factor (note: 9 and -1 multiply to -9 and add to +8)

-------------------------------------------------------

So in the end, factors to
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