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which quadratic equation has roots 7 and -2/3?

a. 2x^2- 11x-21=0
b. 3x^2- 19x-14=0
c. 3x^2+23x+14=0
d. 2x^2+11x-21=0

2007-01-26 10:03:57 · 1 answers · asked by lana l 1 in Science & Mathematics ➔ Mathematics

1 answers

(x-7)(3x+2)
3x^2+2x-21x-14
3x^2-19x-14

answer is B.

2007-01-26 10:18:19 · answer #1 · answered by      7 · 1⤊ 0⤋

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