if x*x=49
what are the possible values of x
2007-09-28 19:51:53 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
x ² = 49
x = ± 7
2007-09-28 21:14:56 · answer #1 · answered by Como 7 · 0⤊ 0⤋
A very simple question. The answer is 7 or -7. Do you really mean, 'x multiplied with x'? Or do you mean 'x raised to the power x'?
If you mean x*x = 49, the answer would be 7 or -7.
If you mean,
x^x = 49
Taking log on both the sides
x*log(x) = log(49)
Solving this equation, we can get the approximate value of x.
Therefore x = 3.27803
2007-09-29 03:08:20 · answer #2 · answered by Sanket 2 · 0⤊ 0⤋
Ans. x*x=49
X=7, X=-7.
2007-09-29 05:50:02 · answer #3 · answered by Sasi Kumar 4 · 0⤊ 0⤋
x=7 or x=-7
2007-09-29 02:55:48 · answer #4 · answered by rohit s BOSS... 2 · 0⤊ 0⤋
do u mean x times x or x^x? if x times x, then its 7 and -7.
2007-09-29 02:56:34 · answer #5 · answered by Nilly 3 · 0⤊ 0⤋
what number muliplied by itself (squared) = 49?
it's the square root of 49.
2007-09-29 03:00:37 · answer #6 · answered by Tom H 2 · 0⤊ 0⤋
x=+/- sqrt(49)
2007-09-29 02:54:37 · answer #7 · answered by ivan k 5 · 0⤊ 0⤋