How do you solve 4*5^(x/2)=500?

1 Answer
Jun 17, 2016

The value of color(blue)(x = 6

Explanation:

color(blue)(4) * 5 ^(x/2) = 500

5 ^(x/2) = 500 / color(blue)(4

5 ^(x/2) = 125

125 can also be expressed as 5^3, so the expression now becomes:

5 ^(x/2) = 5^3
Now as the bases are equal we can equate the powers and obtain the value of x.

x/2 = 3

color(blue)(x = 6