Question

Add [7x] ^2-8, [2x] ^2+1 and 5-x^2. and ^ means power and if you spam i will report you

Answer 1

52x2−2

Explanation:

=49x2+−8+4x2+1+5+−x2

Combine Like Terms:

=49x2+−8+4x2+1+5+−x2

=(49x2+4x2+−x2)+(−8+1+5)

=52x2+−2