Answer: y=5, x=4
Step-by-step explanation:
3y= 15 divide both sides by 3
Y= 5
4x = x+12 subtract x from both sides.
3x = 12 divide both sides by 3
X= 4
Answer:
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Step-by-step explanation:
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Answer:
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Step-by-step explanation:
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You could do the question the way it is written, but it is far easier to bring the negative power up to the numerator.
y= x^2 - 3. The derivative of that is
dy/dx = 2x The three is a constant and is always dropped when a derivative is taken
d(-3)/dx = 0
If you are a purist and want to solve the question the way it is written, you could do it this way.
dy/dx = d(1)/dx x^-2 - d(x^-2)/dx * 1
======================
(x^-2)^2
dy/dx = - (-2 x^ - 3) / x^-4
dy/dx = 2 x^-3 * x^4
dy/dx = 2 x^(-3 + 4)
dy/dx = 2x ^ 1
dy/dx = 2x <<<<< answer
