2^x = 4^5/2?

0 ⤊

Please help me.

Answer choices,

2

5

5/2

4

2007-06-21 04:26:33 · 4 answers · asked by paw_nikki_mixmutt 1 in Science & Mathematics ➔ Mathematics

2^x = (2^2) ^ (5/2) or 2^x = 2^5 using exp. rules

x = 5

2007-06-21 04:30:50 · answer #1 · answered by gfulton57 4 · 0⤊ 0⤋

x=5

2007-06-21 11:34:55 · answer #2 · answered by Anonymous · 0⤊ 0⤋

2^x = 4^(5/2) = (2^2)^(5/2) = 2^[2(5/2)] = 2^5
x = 5
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Attention:
It should be 4^(5/2). Otherwise, x = 9 because 4^5/2 = 2^(10-1).

2007-06-21 11:35:41 · answer #3 · answered by sahsjing 7 · 0⤊ 0⤋

2^x = (2Â²)^(5/2)
2^(x) = 2^(5)
x = 5 , the second option.

2007-06-24 06:39:53 · answer #4 · answered by Como 7 · 0⤊ 0⤋