SOLUTION: (7s^2-3t)(3s+8t) i have gotten far into the problem and have figured that 7s^2 and 3s= 21s^3 i have also figured out that -3t and 8t= -24t^2 i just cant seem to figure the midd

Algebra ->  Distributive-associative-commutative-properties -> SOLUTION: (7s^2-3t)(3s+8t) i have gotten far into the problem and have figured that 7s^2 and 3s= 21s^3 i have also figured out that -3t and 8t= -24t^2 i just cant seem to figure the midd      Log On


   



Question 680635: (7s^2-3t)(3s+8t)
i have gotten far into the problem and have figured that 7s^2 and 3s= 21s^3
i have also figured out that -3t and 8t= -24t^2
i just cant seem to figure the middle out

Found 2 solutions by stanbon, ReadingBoosters:
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
(7s^2-3t)(3s+8t)
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Use FAIL:
F: (7s^2)(3s) = 21s^3
O: (7s^2)(8t) = 56s^2t
I: (-3t)(3s) = -9st
L: (-3t)(8t) = -24t^2
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Ans: 21s^3 + 56s^2t - 9st - 24t^2
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Cheers,
Stan H.
===================

Answer by ReadingBoosters(3246) About Me  (Show Source):
You can put this solution on YOUR website!
%287x%5E2+-+3t%29%283x+%2B+8t%29
...
7x%5E2%283x%29+%2B+7x%5E2%288t%29+-+3t%283x%29+-+3t%288t%29
...
highlight_green%2821x%5E3+%2B+56tx%5E2+-+9tx+-+24t%5E2%29
.....................
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