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express (3x + 5)/(x^2 + 2x - 15) - 2/(x - 3) as a single fraction its simplest form

(x - 5) / (x 2 + 2x - 15)
GH
Answered by George H. • Maths tutor
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Examine the presentation of the male characters in Mary Shelley's Frankenstein

Shelley presents her protagonist Victor Frankenstein as being entirely innocent throughout his youth, as he claims about his parents, 'I was their plaything- their child, the innocent and helpless creature.....
GI
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How are impulses propagated along an axon?

The axon is polarised at rest. This means that there is a negative charge within the axon and a positive charge outside. This resting polarisation is caused by a Na/K pump that uses active transport to trans...
ZF
Answered by Zia F. • Biology tutor
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Describe and explain the process of protein synthesis. (6 marks)

Transcription is the first step of protein synthesis. This involves DNA helicase unwinding the double stranded DNA, and complementary mRNA binding to the DNA bases with the help of the DNA polymerase. DNA li...
BS
Answered by Ben S. • Biology tutor
52488 Views

Why does the product rule for differentiating functions work?

Let k(x) = f(x)g(x) then k'(x) = limit as h --> 0 of: (h(x+h)-h(x))/h = lim (f(x+h)g(x+h) - f(x)g(x))/h We can factorise the numerator as: f(x+h)g(x+h) - f(x)g(x) =f(x+h)g(x+h) -g(x)f(x+h) + g(x)f(x+h)- f...
BV
Answered by Blaine V. • Maths tutor
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