Question

find the value of the following expressions when expressions when a=1 and b=-2 a²- b²+3ab​

Answer 1

Answer:

2*1-4+(-6)

2-4-6

2-10

-8

is the answer

Answer 2

Answer:

-9

Step-by-step explanation:

a^2-b^2+3ab

=1-(-2)^2+3(1)(-2)