2^(x+3) -9*2^(x) +1=0
plz help
Answers
Answered by
1
Answer:
x=0
Step-by-step explanation:
please refer to image below.
Pls Note
Any Number with exponent 0 is always 1. Thus, whenever we get 1=
than take x=0.
hope its clear. Apply the same method in exam teacher will give full marks.
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Answered by
0
Answer:
2^(x+3)-9*2^x+1=0
2^3*2^x-9*2^x+1=9
8*2^x-9*2^x+1=0
-2^x+1=0
2^x=1
2^x=2^0
x=0
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