SOLUTION: x^2 + 15^2 = 5 times the square root of 13 ^2

Question 189888: x^2 + 15^2 = 5 times the square root of 13 ^2
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Is the equation ????

Start with the given equation.

Square each factor

Square 5 to get 25. Square to get

Multiply

Square 15 to get 225.

Subtract 225 from both sides.

Combine like terms.

Take the square root of both sides

or Break up the "plus/minus" to form two equations.

or Take the square root of 100 to get 10.

So the solutions are or

If "x" is a distance or length, then this means that the negative answer doesn't make much sense. So if "x" is a length or distance, then the only answer is
RELATED QUESTIONS
what is the answer to 2 times the square root of 5 minus 2 times the square root of 36... (answered by nurset2010,richard1234)

1+(1/x^2)=(3/x) what are the solutions to the equation? A. x=(3/2)+(square root of... (answered by Theo)

1+(1/x^2)=(3/x) what are the solutions to the equation? A. x=(3/2)+(square root of... (answered by Fombitz)

i need to simplify (5+ the square root of -8) + (-13+4 times the square root of -2)... (answered by rob9926,jim_thompson5910)

Perform the indicated multiplication. Then simplify each radical expression. 1. square (answered by jim_thompson5910,ilana)

Square root 18 times the square root of 256 dived by 2 times the square root of... (answered by rfer)

15-^2x+2=13 ^+ square... (answered by ankor@dixie-net.com)

square root of 15 times (square root of 45 - square root of 15) a. 3(square root 75)... (answered by jsmallt9)

are the following numbers rational? -1/square root of 5, 13/square root of 5, square... (answered by Fombitz)