Question

a^2- b^2 + 4ab (a=1 and b= -2)​

Answer 1

Step-by-step explanation:

$.5.2525 \div - 2 = 6$

Answer 2

Answer:

if a=1 and b=-2

a²-b²+4ab

1²-(-2)²+4x1x-2

1-4+-8

-11