2007-02-01 15:16:49 · 9 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
First: eliminate the exponent by finding the square root of both sides...
V`(x^2) = V`(25)
Sec: express both sides in lowest terms...
V`(x)(x) = +/- V`(5*5)
Third: when you have a number/variable repeated twice & your finding the square root --- write it once...
x = 5, -5
2007-02-01 15:21:54 · answer #1 · answered by ♪♥Annie♥♪ 6 · 3⤊ 0⤋
5
2007-02-01 23:19:34 · answer #2 · answered by genji 3 · 0⤊ 2⤋
+ or - 5. In other words, x=5 or -5. You have to remember PEMDAS = Parenthesis, Exponents, Multiplication, Division, Add Subtract, in that order when solving equations. So first in the problem you have an exponent. If it's x^2 you have to take the square root of that side, and the square root of the other side, thus leaving you with -5, or 5. It's -5 too because -5^2 is 25. If the question is asking you to factore this equation you're going to have to move the 25 to the other side of the equation (x^2-25=0) then when factoring it would (x-5)(x+5). I hope this helps you out.
2007-02-01 23:29:59 · answer #3 · answered by somerandomguy702 2 · 0⤊ 0⤋
x=+-5
2007-02-01 23:19:48 · answer #4 · answered by climberguy12 7 · 1⤊ 1⤋
5 or -5.
2007-02-01 23:23:07 · answer #5 · answered by CLICKHEREx 5 · 0⤊ 0⤋
x=5, because 5 * 5 = 25.
2007-02-01 23:19:55 · answer #6 · answered by fair_gwenofair 2 · 0⤊ 2⤋
Simply find the square root of 25 to find just x, so the answer is 5
2007-02-01 23:21:58 · answer #7 · answered by flbtigger 2 · 0⤊ 1⤋
Go with climbergu... here. -5 is just as valid a solution for the equation as +5, and those are the only two solutions.
2007-02-01 23:22:09 · answer #8 · answered by Richard B 4 · 0⤊ 0⤋
u could jus use a calculator to press (squareroot)25.. and ull get e answer 5..
otherwise.. take a look at ur multiplication table
2007-02-01 23:22:47 · answer #9 · answered by glamourliciouss 1 · 0⤊ 0⤋