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Maths
GCSE

How do you factorise the algebraic expression x^2 +5x+ 6?

Factorising is all about writing algebraic expressions using brackets, to separate x terms.(x + ... )(x +... ) when multiplying out the brackets there will be an x2 term, an x term and a numeri...

JC
Answered by Jessica C. Maths tutor
3589 Views

Find the values of x given the equation (4x^2)-3x+1=2 using the quadratic formula.

4x2-3x+1=2The first step is to rearrange the equation, equating it to zero: 4x2-3x+1-2=0 which gives 4x2-3x-1=0. Next we apply the quadratic formula: x=(-...

SM
Answered by Shahnaan M. Maths tutor
3960 Views

Expand (t+5)(t-2)

FOIL stands for First,Outer,Inner and Last. This is the order of multiplying the terms from each set of brackets.First terms give: t x t=t2Outer terms give: t x -2=-2tInner terms give: 5 x t=5t...

OS
Answered by Ollie S. Maths tutor
4682 Views

solve this simultaneous equation: 4x+ y = 12 , 2x+ y = 8

 4x+ y = 12 , 2x+ y = 81) find the unknown (either x or y) that has the same coefficient. - In this example it is y2) Take away the equations from one another so you only have 1 unknown - 2x = 43) Divide ...

NS
Answered by Natasha S. Maths tutor
3644 Views

How do you solve inequalities when you have two inequality symbols in the expression, e.g. 4x - 6 < 14 < 3x + 2

So to tackle this question you have to imagine 4x + 6 < 14 < 3x - 2 as two separate inequalities.4x - 6 < 14 and 14 < 3x + 2
This still means the same thing but we have simplified it by ...

AP
Answered by Alice P. Maths tutor
4008 Views

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