Question

expand the following
answer fast please

Answer 1

Answer

Use the formula for (a+b+c)^2 = a^2 +b^2+c^2 + 2( ab + bc + ca)

Step-by-step explanation:

a = a/2

b = -b/4

c = 2

(a/2)^2 + (-b/4)^2 +(2)^2 + 2[(a/2)(-b/4) + (-b/4)(2) + (a/2)(2)]

a^2/4 - b^2/16 + 4 + 2(-ab/8 -2b/4 + 2a/2)

= a^2/4 - b^2/16 + 4 - 2ab/8 - 4b/4 + 4a/2

= a^2/4 - b^2/16 + 4 - ab/4 - b + 2a ----------------- Answer

I hope it is helpful