(3x2+5)+(16x2+7)

Question

HELLPPPP!!!!

Answer 1

Assuming  (3x² + 5) + ( 16x² + 7) = (3x² + 16x² + 5 + 7 ) = 19x² + 12

 

Bill.

Answer 2

Do everything inside the () first. Remember that multiplication comes before addition. Do the two multiplications. So you get...

(6+5)+(32+7)

11+39=50

Answer 3

I assume the same as Bill, with the 2's being exponents, in which case you'd add your like terms. The x² terms can be added (no change in power there!) and the constants can be added.