Question

Can someone help me out with these two problems and show work please !!

Answer 1

( 6 y^4 + 3 y^2 -7) - (12 y^4 - y^2 + 5)

Explanation:

(6 y^4+ 3 y^2-7) - (12 y^4 - y^2 + 5 )

=6 y^4 +3 y ^2 - 7 - 12 y^4 + y^2 - 5

=6 y ^4 - 12 y ^4 +3 y ^2 + y ^2 - 7 -5

= -6 y ^4 + 4 y ^2- 12

Hope this helps!