Question 893694
if a triangle consists of side lengths (7 a 2 + 6a), (-5 a 2 - 6 b 2 - 2b), and (2b2 - 3b - a) what is the perimeter of the triangle in simplest form?
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It's not clear what "7 a 2" means.
If 2 is an exponent, use ^ (Shift 6) for exponents.
eg, 7a^2