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How do I complete the square of an equation?

First off, write your equation in the form: ax^ 2 +by+c=0 with a, b and c being your constant coefficients. First, we will factorise out a such that: a(x^ 2 +(b/a)x)+c Now divide b by 2. Then write a(x+(b/2a...
BD
Answered by Beth D. Maths tutor
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How do you write an A Level essay?

Writing an A Level essay which successfully hits the mark scheme with fluidity and a clear style can sometimes seem to be a daunting task. Where at GCSE level it is adequate to simply demonstrate subject kno...
RS
Answered by Rachel S. History tutor
4930 Views

How do I structure the paragraphs in my essays?

When writing any essay, you must always include an introduction, a main body of text, and a conclusion. It's like a sandwich, with the good meaty stuff right in the middle. The introduction, in any essay, ne...
CW
12905 Views

How to factorise quadratic equations?

There are different ways of factoring an equation depending on the type. A few are highlighted here: 1) Taking out a common factor General formula : ab + ac = a ( b+ c) Step 1: realise that all terms of the ...
LB
Answered by Lydia B. Maths tutor
6654 Views

find the integral for xe^10x

for this type of question, integral by parts should be used . This involves using the formula for intregation by parts: lets first break apart the x and e 10x into two parts - "u" and "v"...
CS
Answered by Carl S. Maths tutor
14797 Views