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Factorise x^2 + 4x +3

First take the 4x - the two numbers that will be +/- to the x in the brackets will need to add to form this number, so the possibilities are 1 and 3 or 2 and 2.Now take the 3 - the two numbers that will be +...
JS
Answered by James S. • Maths tutor
9166 Views

How to Solve Two Simultaneous Equations

I will use the whiteboard in order to explain the answer to my question. The format will follow:Understanding what it means to 'solve' one equationUnderstanding what it means to 'solve' two equationsVariable...
MI
Answered by Matthew I. • Maths tutor
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Solve the simultaneous equations 4x – 3y = 11 10x + 2y = −1

4x - 3y = 11 10x + 2y = -1 x2 x38x - 6y = 22 30x + 6y = -338x = 19x = 28 - 3y = 11-3 = 3yy = -1x=2, y=-1
SJ
Answered by Sophie Joy L. • Maths tutor
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How do I factorise x^2 - 5x + 6

You want to express this expression in the form (x+a)(x+b) to do this you want to find two numbers that add to make -5 (the coefficient of x) and multiply to make 6. Let's first focus on numbers that multipl...
SW
Answered by Samuel W. • Maths tutor
5671 Views

I need help understanding simultaneous equations with more than two variables, can you please help?

Working with more than 2 variables in simultaneous equations can be daunting at first, but as long as you apply the same methods you have learned for simpler problems, you will get used to these more complex...
SM
Answered by Sam M. • Maths tutor
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