In the quadratic formula, could I simplify:
X = 10 ± √15 over 5
and get 2 ± √3 ?
2007-04-13 06:29:46 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
nope... its
[10 +/- sqrt(15) ] /5
= 2 +/- sqrt(15/25)
= 2 +- sqrt( 3/5)
2007-04-13 06:33:56 · answer #1 · answered by hustolemyname 6 · 0⤊ 0⤋
X = (10 ± √15) / 5
simplifies to
X = 5 ± √15 / √25
X = 5 ± √(15/25)
X = 5 ± √(3/5)
2007-04-13 06:34:59 · answer #2 · answered by peateargryfin 5 · 0⤊ 0⤋
no, you would be stuck with 2 ± √15 / 5
2007-04-13 06:33:35 · answer #3 · answered by jedi_six 3 · 1⤊ 0⤋
No. You could get 2+or- (sqrt of15)/5
2007-04-13 06:54:07 · answer #4 · answered by RonnyJ 3 · 0⤊ 0⤋
No ... you can't divide the numder in the radical by the denominator. You would need to square it (denominator) to bring it in.
2007-04-13 06:35:25 · answer #5 · answered by Gene 7 · 1⤊ 0⤋
no, you can't divide a number inside a radical by a number that's not also inside a radical.
2007-04-13 06:34:30 · answer #6 · answered by Emily 3 · 0⤊ 0⤋