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Maths
GCSE

Solve x^2 -6x +5 = 0 and plot this graph between -10<x>10

To solve the equation you need to factorise the quadratic. This means you need to find 2 numbers that when multiplied make 5 and when added together make -6. These would be -1 and -5. You can now separate...

HH
Answered by Henry H. Maths tutor
3028 Views

How do I solve 2x^2 -x -6 = 0

Firstly if you multiply the number infront of the x2 by the number at the end to give -12. And then take the number infront of x, which is -1. Now we need to find two numbers that add to make -...

BB
Answered by Bei Bei M. Maths tutor
4115 Views

What is the best way to revise in preparation for GCSE maths.

The best way to revise Maths is by completing questions by topic then once confident, moving on to past papers.

AC
Answered by Alex C. Maths tutor
2642 Views

Solve the simultaneous equations. Equation one: 4x – 3y = 7. Equation two: 4x + y = -1.

To solve this question you need to find a value of x and y which satisfies both of the equations. Simultaneous equations can be solved by three methods: substitution, elimination, and graphically. We will...

EF
Answered by Emma F. Maths tutor
8386 Views

Why is Pythagoras theorem (a^2 + b^2 = c^2) true for every right angle triangle?

Firstly let's take a right angle triangle. Label its sides a,b, c for the hypotenuse. Then arrange 4 of these triangles into a large square, with a smaller square contained within it. The area of the smal...

EG
Answered by Edwyn G. Maths tutor
6873 Views

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