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sladkih [1.3K]
3 years ago
14

-x^(2)-12=-87 Please explain your answer, and how I make the x positive

Mathematics
1 answer:
spayn [35]3 years ago
7 0
Solve for x over the real numbers:
-x^2 - 12 = -87
Add 12 to both sides:
-x^2 = -75
Multiply both sides by -1:
x^2 = 75
Take the square root of both sides:
Answer:  x = 5 sqrt(3) or x = -5 sqrt(3)  both Answers are correct
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3 years ago
a secant and tangent are drawn to a circle from a common exterior point. If the length is 14 inches and the length of the extern
hoa [83]

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