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Popular >

sqrt(x^2-9)=4

Solution

x^{2} - 9 = 4

Solution

x = 5, x = - 5

Solution steps

x^{2} - 9 = 4

Square both sides:

x^{2} - 9 = 16

x^{2} - 9 = 16

Solve

x^{2} - 9 = 16 : x = 5, x = - 5

x = 5, x = - 5

Verify Solutions:

x = 5

True

, x = - 5

True

The solutions are

x = 5, x = - 5

Popular Examples

sqrt(x+7)-2x=-1

x + 7 - 2 x = - 1

(x - 4)^{\frac{3}{2}} = 27

sqrt(2x+12)=x-6

2 x + 12 = x - 6

11 x + 5 = 7

x + 5 + 1 = x

Frequently Asked Questions (FAQ)

What is the answer to sqrt(x^2-9)=4 ?
The answer to sqrt(x^2-9)=4 is x=5,x=-5
Solve for x: sqrt(x^2-9)=4
The solution is x=5,x=-5