Identify integral: Identify the integral to be solved.We need to evaluate the integral of the function 5xe3x with respect to x. This is an integration problem that requires the use of integration by parts, which is based on the formula ∫udv=uv−∫vdu.
Choose u and dv: Choose u and dv.Let u=5x, which implies that du=5dx.Let dv=e3xdx, which implies that v=31e3x after integrating dv with respect to x.
Apply integration by parts: Apply the integration by parts formula.Using the integration by parts formula, we have:∫5xe3xdx=uv−∫vdu= (5x)(31)e3x−∫(31)e3x(5dx)
Simplify and integrate: Simplify and integrate the remaining integral.=35xe3x−35∫e3xdxNow we integrate e3x with respect to x, which gives us 31e3x.
Substitute and simplify: Substitute the integral and simplify.= (35)xe(3x)−(35)⋅(31)e(3x)+C= (35)xe(3x)−(95)e(3x)+C
Combine and write final answer: Combine like terms and write the final answer.The final answer is the integral of 5xe3x with respect to x:=35xe3x−95e3x+C
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