write a quadratic equation with roots -5 and 2?

4 ⤊

2007-12-03 15:22:13 · 4 answers · asked by Miss Happy 1 in Science & Mathematics ➔ Mathematics

(x + 5)(x - 2) = 0
x² + 3x - 10 = 0

2007-12-04 03:04:39 · answer #1 · answered by Como 7 · 3⤊ 1⤋

Just work backwards and you can get your answer:
x = -5 and x = 2
x+5 = 0 and x-2 = 0
(x+5)(x-2) = 0
x^2 + 3x - 10 = 0

2007-12-03 15:29:49 · answer #2 · answered by Anonymous · 0⤊ 1⤋

(x+5)(x-2) = 0

2007-12-03 15:25:44 · answer #3 · answered by Dan A 6 · 1⤊ 0⤋

(x-2)(x-5) = 0 then x^2 - 7x + 10 = 0 then x^2 - 7x = -10

2016-03-14 04:30:45 · answer #4 · answered by Anonymous · 0⤊ 0⤋