solve this quadratic equation?

0 ⤊

solve this quadratic equation?

a^2 - 7a + 12 = 0

2006-11-26 15:15:09 · 3 answers · asked by tigertank702 1 in Science & Mathematics ➔ Mathematics

3 answers

a=3 or 4

2006-11-26 15:25:06 · answer #1 · answered by Joe J 4 · 0⤊ 0⤋

the quadratic formula solves every quadratic equation. just plug in the coefficients and simplify. but in such a simple case as the one you give, it is much quicker to factor:
(a-3)(a-4)=0
a=3
a=4

2006-11-26 23:22:57 · answer #2 · answered by Anonymous · 0⤊ 0⤋

a = {7 +/- sqrt{49-48}} / 2

a = 3 and 4

2006-11-26 23:20:03 · answer #3 · answered by cw 3 · 0⤊ 0⤋