If a and b are different values and a – b = 4(√a - √b), then in terms of b, a equals:	Choose the correct choice from the following options:	A) √b	B) b	C) b - 8√b + 16	D) b + 2√b + 1	E) b^2 – 2b√b + b
(√a)^2 - (√b)^2 = 4(√a - √b) -----&gt; ( √a + √b) ( √a - √b) = 4(√a - √b) -------&gt; √a + √b = 4, so   √a = 4 - √b, square both sides and solve. Answer is b - 8√b + 16.
<result>C</result>
If a and b are different values and a – b = 4(√a - √b), then in terms of b, a equals: