Question 194045: please multiply and simplify
(4a-5)(2a^2+a-4)
thanks
Found 2 solutions by RAY100, Alan3354:
Answer by RAY100(1637)   (Show Source):
You can put this solution on YOUR website! ( 4a -5 ) (4a^2 +a -4 )
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,,,,,,,16a^3 + 4a^2 - 16a
,,,,,,,,,,,,,,,,,- 20 a^2 - 5a + 20
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,,,,,,,,16a^3 - 16a^2 -21a +20
,
check
let x=1 in both original and answer, both gave (-1),,,ok
Answer by Alan3354(69443)  (Show Source):
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