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Need REAL ANSWER AND SOLUTION please so i can study it. Help me math experts

Need REAL ANSWER AND SOLUTION please so i can study it. Help me math experts-example-1

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Answer:

B

Explanation:

Should be B.

Derivative of 9X^2 is 18x because the exponent multiplied by the coefficient is 18 and the exponent minus 1 is just 1.

Derivative of 1 is 0 because derivative of any real number is 0

Derivative of y^2 is 2y dy/dx because derivative of y^2 is 2y since the exponent 2 times the coefficient 1 equals 1. And the exponent 2 minus 1 is simply 1.

BUT since it's respect to x, we have to add dy/dx right at the end of the 2y

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