Question

Which of the following Is equivalent to the expression below?
(a^2-2b^2+3)-(4b^2-5)+(3a^2+4)

A. 4a^2-6b^2+12

B. 4a^2-6b^2+2

C. 4a^2+2b^2+2

D. 4a^2+2b^2+12

Answer 1

A. 4a^2-6b^2+12

hope this helps