What are the square roots of the equation x^2 + 6x - 9 = 0? PLEASE HELP!!!

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10-04-2018
Mathematics

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What are the square roots of the equation x^2 + 6x - 9 = 0? PLEASE HELP!!!

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kiaratatiana7p6mdlk kiaratatiana7p6mdlk · Answer 1 · 2018-04-10T23:12:20+02:00

kiaratatiana7p6mdlk kiaratatiana7p6mdlk

10-04-2018

x^2+ 6x - 9 = 0

Use the quadratic formula
x = (−b± sqrt (b^2−4ac)) / 2a

a = 1
b = 6
c = -9

x = −6± sqrt (6^2−4(1)(-9) / 2(1)
x = (−6± sqrt(72))/2

so these are your two solutions to the equation
x = 1.243
x = -7.243

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