what is an example question in a level maths?

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Guest May 17, 2014

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Best Answer

Integrate x^3+3x^2+15x+4 and factorise the integral

$$\int (x^3+3x^2+15x+4)\:dx\\\\
=\frac{x^4}{4}+\frac{3x^3}{3}+\frac{15x^2}{2}+4x+c\\\\
=\frac{x^4}{4}+x^3+\frac{15x^2}{2}+4x+c\\\\$$

I can't factorise because I don't know what c is.

Melody May 18, 2014

Melody · Answer 1 · 2014-05-18T04:45:45

Integrate x^3+3x^2+15x+4 and factorise the integral

$$\int (x^3+3x^2+15x+4)\:dx\\\\
=\frac{x^4}{4}+\frac{3x^3}{3}+\frac{15x^2}{2}+4x+c\\\\
=\frac{x^4}{4}+x^3+\frac{15x^2}{2}+4x+c\\\\$$

I can't factorise because I don't know what c is.

Guest · Answer 2 · 2014-05-17T04:23:54

Integrate x^3+3x^2+15x+4 and factorise the integral