Q. Calculate the integral and write the answer in simplest form.∫(3+6x−3)dxAnswer:
Identify integral: Identify the integral to be solved.We need to find the indefinite integral of the function 3+6x−3 with respect to x.The integral is written as ∫(3+6x−3)dx.
Break down parts: Break down the integral into simpler parts.The integral of a sum is the sum of the integrals, so we can write:∫(3+6x−3)dx=∫3dx+∫6x−3dx.
Integrate constant: Integrate the constant term.The integral of a constant 3 with respect to x is 3x.So, ∫3dx=3x.
Integrate term: Integrate the term 6x−3. The integral of 6x−3 with respect to x is 6 times the integral of x−3 with respect to x. Using the power rule for integration, ∫xndx=n+1xn+1 for n=−1, we get: ∫6x−3dx=6×(−3+1x−3+1)=6×(−2x−2)=−3x−2.
Combine and add: Combine the results and add the constant of integration.Combining the results from steps 3 and 4, we get:∫(3+6x−3)dx=3x−3x−2+C.
Simplify result: Simplify the result.The integral in its simplest form is:3x−x23+C.
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