How do you combine #3x ^ { 2} ( 3x - 2) - 9x ( 3x - 2) ^ { 2}#?
1 Answer
Distribute, then combine like terms
Explanation:
First of all, group the equation into two separate parts:
The negative nine is isolated with the second grouping, as it needs to be distributed.
Now, for part one:
Distribute the
Make sure to multiply the coefficients, and remember that the exponent on the variable needs to be increased. When multiplying two variables together, remember to multiply the coefficients as well as add the powers together
Now, for part two:
At first glance, it looks like we do the same process for step 1. however, the term of
Now, we have to distribute the -9 to each term in the equation
For the last step, combine the two parts of the equation, combining like terms