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express (2x^2-3x-5)/(x^2+6x+5) in the form (ax+b)/(cx+d)

(2x-5)/(x+5)
MB
Answered by Matthew B. • Maths tutor
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Solve the following simultaneous equations y + 4x + 1 = 0, y^2 + 5x^2 + 2x = 0

Here we can either use the substitution method or the elimination method. The elimination method here would be hard to carry out due to there being no term which we can make equal in terms of only one of the...
AW
Answered by Alex W. • Maths tutor
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What is differentiation used for in the real world?

Differentiation is very helpful in the real world, in many different fields. In terms of business and economics, being able to derive maximum and minimum values of certain functions can prove extremely usefu...
DO
Answered by Daniel O. • Maths tutor
7058 Views

Differentiate sin(x)*x^2

Notice that (sin(x))'= cos(x) and (x^2)' = 2x We use the product rule to differentiate, by noticing the expression is a product. so (fx gx)' = f'x gx + fx*g'x substituting in we get (sin(x)*x^2) = cos(x)*x^2...
DG
Answered by Drenusha G. • Maths tutor
3803 Views

Find x when 2x^2-4x-6=0

Factorise 2x 2 -4x-6=0 2(x 2 -2-3)=0 -> 2(x+1)(x-3)=0 split factors up 2=0 , (x+1)=0 and (x-3)=0 x+1=0 -> x = -1 x-3=0 -> x = 3
IG
Answered by India G. • Maths tutor
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