Since the two parenthetical expressions are added, we can simply ignore the parentheses. (If they were subtracted, all the +s and -s in the second one would have to be switched.)
Now just find the ones that have the same exponent, since you can't combine ones that are raised to different powers.
17c^6 + 5c^6 = 22c^6
12c^5 stands alone - there is no other c^5
-8c^4 stands alone - there is no other c^4
-3c^3 + 9c^3 = 6c^3
2c^2 + 11c^2 = 13c^2
-5c stands alone - there is no other c
9 - 6 = 3
So, we are left with:
22c^6 + 12c^5 - 8c^4 + 6c^3 + 13c^2 - 5c + 3
No comments:
Post a Comment