4a²-4ab + b2, when a = 2 and b = 5

49

Step-by-step explanation:

4*16-4*2*5+5^2

49

-14

Step-by-step explanation:

literally just plug the numbers in the equation:

a= 2 b=5

4(2)^2-4(2)(5)+(5)2

4(4) -4(10) +10

16 - 40 + 10

-14

Hope this helps

no because after the troops were pulled many blacks were killed by hangings lynchings and other cruel ways which in a way interrupted the reconstruction of the south and differed from the way abraham lincoln had an idea of reconstruction

step-by-step explanation:

is their an equation anywhere i can take a   look at it and see if i am right.