2) find the value of x, if
2^x + 2^x + 2^x + 2^x + = 128
O a)3
b)5
c)4
d)2
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Answer:
2^x + 2^x + 2^x + 2^x = 128
=> 4 x 2^x = 128
=> 2^x = 128/4 = 32
32 is also equal to 2^5
therefore,
2^x = 2^5
comparing exponenents
x = 5
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