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The trinomial $\left(x^2+2x+1\right)$ is a perfect square trinomial, because it's discriminant is equal to zero
Learn how to solve integral calculus problems step by step online.
$\Delta=b^2-4ac=2^2-4\left(1\right)\left(1\right) = 0$
Learn how to solve integral calculus problems step by step online. Find the integral int(sin(x)(x^2+2x+1))dx. The trinomial \left(x^2+2x+1\right) is a perfect square trinomial, because it's discriminant is equal to zero. Using the perfect square trinomial formula. Factoring the perfect square trinomial. We can solve the integral \int\left(x+1\right)^{2}\sin\left(x\right)dx by applying integration by substitution method (also called U-Substitution). First, we must identify a section within the integral with a new variable (let's call it u), which when substituted makes the integral easier. We see that x+1 it's a good candidate for substitution. Let's define a variable u and assign it to the choosen part.