Simplify. 9^2 - 4c^2 + 2c^2

Holt McDougal Larson Pre-Algebra Common Core Edition pagee 81 number 20

Asked by Dee Dee on 03 Apr 09:49

Last updated by anonymous on 03 Apr 17:38

Answered by CherieS on 03 Apr 17:38

=92 - 4c2 + 2c2

=81- 4c2 + 2c2 (since the two bases are the same you can complete the math function for the variable bases)

=81-2c2