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:
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
