What is the solution set of (h-6)^2=400?

2 Answers
Apr 10, 2018

26.

Explanation:

You are solving for h here, so you would first square root both sides of the equation to get

h-6=20.

Then you add 6 to both sides to get

h=26.

Apr 10, 2018

The two solutions are h=26 and h=-14.

Explanation:

You can square root both sides to cancel the power:

(h-6)^2=400

color(red)sqrt(color(black)((h-6)^2))=color(red)sqrtcolor(black)400

h-6=color(red)sqrtcolor(black)400

h-6=+-20

Solve each equation separately for two solutions:

h-6=20

h=26

And:

h-6=-20

h=-14

Those are the two solutions. Hope this helped!