g^+8g-36=0? quadratic equation form?

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g^+8g-36=0? quadratic equation form?

A)-4+- square root of 13
B)-4+-2 square root of 13
C)9 and -4
D)-12 and 3

2007-05-20 17:39:27 · 2 answers · asked by Lora f 1 in Science & Mathematics ➔ Mathematics

2 answers

(-8+-sqrt(210))/2

2007-05-20 17:46:02 · answer #1 · answered by bruinfan 7 · 0⤊ 0⤋

from question
g^ + 8g + 16 - 52 = 0
or (g+4)^ = 52
so g + 4 = +- (square root 52)
g + 4 = +-2(square root 13)
so g = 2(square root 13) -4 or g = -2(square root 13) -4

2007-05-21 00:46:33 · answer #2 · answered by Anonymous · 0⤊ 0⤋