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Title: solve the exponential equations applying the equivalency property
Description: exam questions with complete answer and explanation
Description: exam questions with complete answer and explanation
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Answer
4
...
x = -2 the answer
B
...
x = 0 the answer
5
...
Wrong solution
x = -1 the answer
B
...
A
...
Missing! 32x+1 = ?missing data
C
...
Yes, it is true that if both sides of the exponential equation have different bases,
logarithms are used to solve the exponential equation
...
A
...
A
...
52x-1 =0
Step 1 : 52x-50 =0
Step 2 : 2x - 0 = 0
Step 3 : x = 0/2
Step 4 : x = 0 the answer
C
...
A
...
Correct solution
x =-1/4 the answer
6
...
(1/2)5x+1=4x-1
Step 1 : (2-1)5x+1=(22)x-1
Step 2 : -5x-1=2x-2
Step 3 : -5x-2x = -2+1
Step 4 : -7x= -1
Step 5 : x = 1/7 the answer
B
...
5x= -(1/25)
Step 1 : 5x= -(5-2)
Step 2 : x = -(-2)
Step 3 : x = 2 the answer
7
...
8
Title: solve the exponential equations applying the equivalency property
Description: exam questions with complete answer and explanation
Description: exam questions with complete answer and explanation