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How to apply the quadratic equation

First you determine which value is a, b, or c in the polynomial. Then you insert those values into the equation correctly.
RN
Answered by Ross N. Maths tutor
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What is the method for factorising the expression 'x^2 + 3x + 2'?

First look at the constant coefficient, which in this case is 2. You need two numbers which will multiply together to make this number. The only pairs of numbers that will make 2, are (1 and 2) or (-1 and -2...
WW
Answered by Will W. Maths tutor
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Factorise 4xy-6xz

Method First Look for a term (i.e x , y, z) which is in all the compoents Also look if there is a possible common factor that the compoents share Soloution ​x is a shared term , and 2 is a common multiple Th...
CT
Answered by Cameron T. Maths tutor
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Make a the subject of the following equation, p=(3a+5)/(4-a)

In this question I would initially aim to get an a on both sides of the equation. My first step would be to multiply both sides by (4-a) to do this. After this point I would expand out the brackets on the le...
MO
Answered by Martin O. Maths tutor
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Factorise and solve: x^2 - 8x = -15

Step 1 : The first step is to rewrite the equation in the form a x 2 + b x + c = 0. So in this case, we achieve this by adding 15 to both sides: x 2 - 8x + 15 = -15 + 15 x 2 - 8x + 15 = 0 Step 2: Now we need...
MJ
Answered by Maisie J. Maths tutor
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