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anonymous
 one year ago
Solve:
x^2+8x8=0
A. {4, pos./neg. sq. root of 6}
B. {4, pos./neg. sq. root of 12}
C. {4, 2 times pos./neg. sq. root of 12}
D. {4, 2 times pos./neg. sq. root of 6}
anonymous
 one year ago
Solve: x^2+8x8=0 A. {4, pos./neg. sq. root of 6} B. {4, pos./neg. sq. root of 12} C. {4, 2 times pos./neg. sq. root of 12} D. {4, 2 times pos./neg. sq. root of 6}

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IrishBoy123
 one year ago
Best ResponseYou've already chosen the best response.0are you learning how to complete a square? \(x^2+8x8 = 0\) \( (x+4)^2168 = 0\) ???? or to plug numbers into this (same thing) \( \frac{ b \pm \sqrt{b^2  4ac}}{2a}\) ?? or to draw curves?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0it just says to solve it and I don't know how. it's probably completing the square.

IrishBoy123
 one year ago
Best ResponseYou've already chosen the best response.0ok!, well here you go: https://www.mathsisfun.com/algebra/completingsquare.html suggest you have a crack at this and report back good luck :p

mathmate
 one year ago
Best ResponseYou've already chosen the best response.0@yayah2001 The answer choices are all wrong. The way they are written, there are 3 roots, which is impossible for a quadratic equation. You may want to check if there is a typo, perhaps the comma (,) should be a plus sign or something else.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I got the answer. thanks for the help!

IrishBoy123
 one year ago
Best ResponseYou've already chosen the best response.0the answer *is* in there :p

mathmate
 one year ago
Best ResponseYou've already chosen the best response.0@IrishBoy123 I am not worried about the answer. The OP should understand that there is a difference between {4, 2 times \(\pm\sqrt{6}\)} which implies 3 roots, and {4+ 2 times \(\pm\sqrt{6}\)} which means there are two roots. He may have chosen the right letter choice, but real life does not exist in multiple choices, sigh!

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0by 2 times I meant multiplication

triciaal
 one year ago
Best ResponseYou've already chosen the best response.1dw:1433125475102:dw

mathmate
 one year ago
Best ResponseYou've already chosen the best response.0@yayah2001 You may not have noticed it, it's between the comma and the + sign that I was referring to.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0thanks for the help, @mathmate, I already have the answer. but, thanks for helping.
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