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Differentiate with respect to x y=(x^3)ln2x

To be able to differentiate this we need to use the product rule as we want to differentiate two functions multiplied together. The product rule states that if y=uv, then : dy/dx= u dv/dx + v du/dx. Let u= x...
JP
Answered by Jennifer P. • Maths tutor
12891 Views

Why is there a "+C" term in the solution of every indefinite integral?

In order to understand where that annoying "+C" term comes from that is so easily forgotten from the end of the solution, let's start with the general thought process of solving an indefinite integ...
ZC
Answered by Zsolt C. • Maths tutor
3318 Views

Solve 14-x = 4(1+x)

First of all we want to expand the brackets out. We do this by mulitplying 4 by each number in the bracket. This then gives us 14-x = 4+4x. We then want to get all the x's on one side and the numbers on the ...
FS
Answered by Francis S. • Maths tutor
3331 Views

Expand the quadratic equation and simplify: (3a+4)(a-1)

To expand brackets you should multiply each term with every other term. Here it would be: 3a 2 -3a+4a-4 Collecting the a terms, this simplifies to: 3a 2 +a-4.
RD
Answered by Ran D. • Maths tutor
4566 Views

What is BODMAS?

BODMAS is an acronym that tells you what order to do things in a maths equation. It stands for brackets, order (e.g. 2 2 ), division/multiplication and addition/subtraction.
JK
Answered by Jessica K. • Maths tutor
4096 Views