Top answers

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
5554 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
13008 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
6738 Views

What is an allele? What are dominant and recessive alleles?

The nucleus of a cell contains DNA molecules, which code for proteins. In humans, DNA is arranged into 46 linear, double-stranded molecules called chromosomes. Chromosomes of similar length are paired up – f...
CT
Answered by Christina T. • Biology tutor
21736 Views

Solve the equation:

5 x-3 =7 2x+1 log 5 5 x-3 =log 5 7 2x+1 x-3=(2x+1)log 5 7 x-2xlog 5 7=3+log 5 7 x(1-2log 5 7)=3+log 5 7 x=(3+log 5 7)/(1-2log 5 7)
NH
Answered by Nina H. • Maths tutor
5453 Views