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Maths
GCSE

Fully expand (2x+4)(4x-3).

Answer:

8x2+10x-12

Explanation:

It is really important that every 'term' is multiplied by every other 'term'. A 'term' doens't just refer to the number but also to the sign...

MH
Answered by Matilda H. Maths tutor
3330 Views

How can I apply trigonometry rules to an isosceles triangle?

First, split the isosceles triangle down the middle to create a right angled triangle. Then label the opposite, hypotenuse and adjacent. The hypotenuse will be the longest side of the triangle, the opposi...

GW
Answered by Gwen W. Maths tutor
31657 Views

factorise the quadratic: v^2+20v+19

Recap defintions: factorise essentially means making the equation simpler by finding the common factors. 

This is a simple quadratic because the first term has a coeffecient of 1. therefore we know...

TL
Answered by Taylor L. Maths tutor
3459 Views

Solve the simultaneous equations: 3x+7y=18 and x+2y=5

  • To help us to see what we need to do in this question, I would always line the equations up one above the other, and label them (1) and (2). Here we'll say that (1) is 3x + 7y =18 and (2) is x+ 2y =...
HC
Answered by Harriet C. Maths tutor
6488 Views

what is x+24=15

x+24-24=15-24

x=15-24=-9

RW
Answered by Ruyuan W. Maths tutor
4988 Views

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