Which value of x makes the numerical sentence true? 25^ 1/2 × 5 ^–3 = 5 ^x

2 answers:

5 0

5^-3=0.008
1/2=0.5
0.5*0.008=0.004
5/0.004=1250

5 0

25^1/2 × 5^–3 = 5 ^x
(5^2)1/2 × 5^–3 = 5^x
5^1 × 5^–3 = 5^x
5^-2 = 5^x
-2 = x
or
x = -2

answer
x = -2 makes the numerical sentence true

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