Find x in 4x × 642x = 16x+5
A. 1
B. 5
C. 4
D. 2
ANS: D
EXPLANATION:
4x × (43)2x = (42) x+5
4x × 46x = 42x+10
4x+6x = 42x+10
x + 6x = 2x+10
5x = 10
x=2
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