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

Firstly if you multiply the number infront of the x 2 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 -1 and multipl...
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Answered by Bei Bei M. • Maths tutor
5269 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.
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Answered by Alex C. • Maths tutor
3293 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 us...
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Answered by Emma F. • Maths tutor
9311 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 smaller...
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Answered by Edwyn G. • Maths tutor
8278 Views

Rearrange to make p the subject. C + 5 p = a ( C – p )

C+5p = a (c-p) C+5p = ac-ap 5p+ap=ac-c p(5+a) = c(a-1) p=(c(a-1))/(5+a)
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Answered by Santiago M. • Maths tutor
4726 Views