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posted by maura on Thursday, September 20, 2012 at 6:49pm.

Differentiate the function. y = (Square root x)(x − 10)

use the product rule on y = (x^(1/2))(x-10) dy/dx = x^(1/2) (1) + (1/2)x^(-1/2) (x-10) = (1/2) x^(-1/2) ( 2x + x-10) = (3x-10)/(2√x)

Thank you so much! I didn't think to use the product rule.

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