You must first figure out what X is then plug it in to find Y
Answer:
The first option. See attachment.
Step-by-step explanation:
Explained on attached image.
Answer:
or 
<u>Simplify the equation to the form</u>
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<u>Move all terms containing x to the left and all other terms to the right</u>
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<u></u>
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<u>Simplify left and right side of the equation</u>
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<u>Divide both sides of the equation by 10 to get x</u>
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or 
Answer:
Step-by-step explanation:
X^4 - 10X^2 + 9 =0 This factors. It just looks odd.
(x^2 - 1)(x^2 - 9) = 0
x^2 - 1 = (x + 1)(x - 1) = 0
x = 1 and x = - 1
x^2 - 9 = (x + 3)(x - 3) = 0
x = 3
x = -3
The correct answer is C (third one down).