Question

i. Simplify the expression and find the its value if x = 2, a = -1, b = -3
4a²-b²+6a²-7b²​

Answer 1

Answer:

They gave x=2, a=-1, b=-3

Directly

4(-1) ^2-(-3) ^2+6(-1) ^2+7(-3) ^2

Step-by-step explanation:

=4+9+6+63

=82