SOLUTION: 5a3(8a-6a)

Question 231278: 5a3(8a-6a)

Found 2 solutions by texttutoring, unlockmath:
Answer by texttutoring(324) (Show Source): You can put this solution on YOUR website!
I assume the a3 means ?
If so, do the subtraction in the brackets first, thenuse the exponent laws (add exponents when multiplying) to find:

Answer by unlockmath(1688) (Show Source): You can put this solution on YOUR website!
Hello,
First let's distribute so it looks like this:
5a^3(8a) - 5a^3(6a) (Note: When I put ^3 it means to the third power.)
Now, we'll multiply each one out.
40a^4 -30a^4
Since these are like terms we can subtract them.
Answer is 10a^4
There is another way and maybe shorter for you which is to do the calulation inside the parenthesis like this.
8a - 6a = 2a
Then just multiply 5a^3(2a) = 10a^4

RJ Toftness
www.math-unlock.com
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