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Solve the following quadratic equation using square roots: −9+(x−3)2−4=−4 .(1 point) Responses
{2,−8} l
{28,−22}
{8,−2}
{16,−10}
{2,−8} l
{28,−22}
{8,−2}
{16,−10}
Answers
Answered by
oobleck
what rubbish! You do a lot of work and arrive at an answer, and then say the solution is something completely different!
In fact, you were wrong twice!!
−9+(x−3)^2−4=−4
-9 + (x-3)^2 = 0
(x-3)^2 = 9
x = 3±3
so x = 0 or 6
since that is also not one of the choices, I suspect a typo.
In fact, you were wrong twice!!
−9+(x−3)^2−4=−4
-9 + (x-3)^2 = 0
(x-3)^2 = 9
x = 3±3
so x = 0 or 6
since that is also not one of the choices, I suspect a typo.
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