Q. Given the function y=5x−26+x4, find dxdy in simplified form.
Identify function: Identify the function to differentiate.We are given the function y=5x−26+x4. We need to find the derivative of this function with respect to x, which is denoted as dxdy.
Apply quotient rule: Apply the quotient rule for differentiation.The quotient rule states that the derivative of a function in the form of u(x)/v(x) is given by (v(x)⋅u′(x)−u(x)⋅v′(x))/(v(x))2, where u(x) is the numerator and v(x) is the denominator of the function.
Differentiate numerator and denominator: Differentiate the numerator and the denominator separately.The numerator u(x)=6+x4, and its derivative u′(x) is 0+4x3.The denominator v(x)=5x−2, and its derivative v′(x) is 5.
Apply quotient rule with derivatives: Apply the quotient rule using the derivatives from Step 3.dxdy=(5x−2)2(5x−2)⋅(4x3)−(6+x4)⋅5
Expand numerator: Expand the numerator of the derivative. dxdy=(5x−2)220x4−8x3−5x4−30
Combine like terms: Combine like terms in the numerator.dxdy=(5x−2)215x4−8x3−30
Simplify derivative expression: Simplify the derivative expression if possible.The expression is already simplified, so this is the final form of the derivative.dxdy=(5x−2)215x4−8x3−30
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