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Describe the principle of Polymerase Chain Reaction (PCR) and its application in laboratory setting.

Polymerase Chain Reaction is an in vitro method used to amplify DNA fragments. It consists of three main steps, which are: (1) denaturing, (2) annealing, (3) and extension. During denaturation, the double-st...
Answered by • Biology tutor
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Describe the Strengths and Weaknesses of Emotivism

One appealing feature of emotivism is that it may promote a tolerant and accepting attitude towards moral diversity. Hence, according to emotivism as moral judgments are nothing more than ‘pure expressions o...
LD
15607 Views

What is the best way to prepare for an unseen poem on an exam?

The best way to prepare for an unseen poem is to practice close analysis before hand. There are certain things that will always be applicable for poetry. You're going to want to talk about the structure of t...
LA
4148 Views

How should I write a conclusion to a critical essay?

A conclusion is a recap of your essay and the perfect place to highlight your ideas and opinions on the text. It is useful to follow a simple structure such as REF: R efer- refer back to the essay question t...
AP
Answered by Alice P. • English tutor
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solve 2x^(2) + 9x +10 = 15

2x^(2) + 9x - 5=0(2x )(x )=0(2x 1)(x 5)=0(2x -1)(x+5)=02x-1=0 or x+5=02x=1 x= -5x= 1/2
KM
Answered by Katie M. • Maths tutor
3529 Views