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Area of a rectangle is width times height (3x+1)(2x+5)= 6x2+15x+2x+5 6x2+17x+5 Set formula of area equal to known area value. 6x2+17x+5= 8 6x2+17x-3 ...
A function is simply a process that takes in a number, does a few operations on it (for example, add, multiply etc), and then gives out another number. If you want to figure out the inverse of a function,...
Say you start with a general equation of x2+ax+b=0. (If the x2 has a coefficient the you will need to divide by that first.)
You need to move to the equation (x+a/2)2BCAnswered by Bryony C. • Maths tutor2863 Views
Factorising is just simplyfying into brackets. To do this you need to find common terms on all the parts of the question. For example: fully factorise 3a3b+12a2b2+...
Ok so to factorise a quadratic with a co-efficient in front of the x^2 you need to follow a couple of steps: Step 1 - multiple the co-efficient by the number at the end of the expression - e.g. 3^8 = 24 S...
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