Question

From the sum of 5a2-3a+2 and -8a2+5a+6 subtract a2+7a-4.

Answer 1

Answer:

2a2-5a+12

Step-by-step explanation:

sum : 5a2-3a+2-8a2+5a+6= -3a2+2a+8

Now, subtracting as per question:

-3a2+2a+8-(a2+7a-4)=-3a2+2a+8-a2-7a+4

=2a2-5a+12