Question

A-b^2+a^2-b если b=-2, a =2

Answer 1

a-b^2+a^2-b=a^2-b^2+a-b=(a-b)(a+b)+(a-b)=(a-b)(a+b+1)=(2-(-2))(2+(-2)+1)=4*1=4

Answer 2

2-(-2)^2 +2^2+2=2-4+4+2=4

Answer 3

To evaluate the expression A - b^2 + a^2 - b with b = -2 and a = 2, we substitute the values and perform the calculations:

A - b^2 + a^2 - b = A - (-2)^2 + (2)^2 - (-2) = A - 4 + 4 + 2 = A + 2

Therefore, the expression simplifies to A + 2.