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2x + 4 > 16

Step 1- Get all the numbers on one side of the inequality sign and all the letters on the other side. Remember when a number is moved to the other side of an inequality, the sign infront changes from either ...
GW
Answered by Gemma W. • Maths tutor
3788 Views

How do you simplify expressions involving different powers?

Let's answer the question by solving an example: Take (8x 2 * 5x 4 * 2y 3 )/(20x 3 ). Firstly, let's take a look at the first bracket and rearrange it so we have both numbers and variables grouped together: ...
PW
Answered by Patryk W. • Maths tutor
4191 Views

How do you find the length of the longest side of a right-angled triangle?

First of all, I would ask the student what they think the question means and whether they have encountered a question like this before, so that I know where to start from. If the student is more of a visual ...
ET
Answered by Eddie T. • Maths tutor
5029 Views

Solve the next innequation: 12x-4>4x+12

First of all, we separate what is multiplying the X from what is not, 12x-4x>12+4 (don't forget the change of sign while passing from one side to another). Then we operatem 8x>16. Finally, x>16/2 th...
LA
Answered by Lucia A. • Maths tutor
4454 Views

Integrate xcos(x)

This problem will be solved using the integration by parts method, taking the integrated function as udv which answer is uv-(integration of vdu) : u=x and dv=cos(x) so, du=dx and v=sin(x). We have, xsin(x)-i...
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Answered by Lucia A. • Maths tutor
4265 Views