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Multiple Choice
Find the derivative of the given function. y=x2e3x2+5x
A
2xe3x2+5x−1
B
2xe3x2+5x+x2e3x2+5x
C
2xe3x2+5x−1(6x+5)
D
Verified step by step guidance
1
Step 1: Recognize that the given function is a product of two functions. Use the product rule for derivatives, which states: if y = u(x)v(x), then y' = u'(x)v(x) + u(x)v'(x).
Step 2: Identify the two functions in the product. Let u(x) = x^2 and v(x) = e^{3x^2 + 5x}.
Step 3: Differentiate u(x) = x^2. The derivative of x^2 is u'(x) = 2x.
Step 4: Differentiate v(x) = e^{3x^2 + 5x}. Use the chain rule: the derivative of e^g(x) is e^g(x) * g'(x). Here, g(x) = 3x^2 + 5x, so g'(x) = 6x + 5. Therefore, v'(x) = e^{3x^2 + 5x} * (6x + 5).
Step 5: Apply the product rule. Substitute u(x), u'(x), v(x), and v'(x) into the formula y' = u'(x)v(x) + u(x)v'(x). Simplify the resulting expression to get the derivative: y' = 2x * e^{3x^2 + 5x} + x^2 * e^{3x^2 + 5x} * (6x + 5).