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Solve, (x1)2=[4(x4)]2(x-1)^2 = [4\sqrt{(x-4)}]^2

A13, 5

B3.4

C9, 4

D21, 15

Answer:

A. 13, 5

Read Explanation:

x22x+1=16(x4)x^2-2x+1 = 16(x-4)

x22x+1=16x64x^2-2x+1 = 16x-64

x218x+65=0x^2-18x+65 = 0

(x13)(x5)=0(x-13)(x-5) = 0

Hence, x = 13 and x = 5


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