Evaluate 5/(x−1)+2/(x+4)

we need to have a common denominator (bottom number the same) to be able to add or subtract fractionsmultiply first fraction by (x+4) on numerator (top) and denominator (bottom)multiply second fraction by (x-1) on numerator and denominatorwe now have...(5(x+4))/((x-1)(x+4)) + (2(x-1))((x-1)(x+4))put into one fraction (5(x+4)+2(x-1))/((x-1)(x+4))expand out the brackets(5x+20+2x-2)/((x-1)(x+4))gather like terms(7x+18)/((x-1)(x+4))check whether the top line can be factorisedno common factor so cannot be factorisedthis is the final solution

CW
Answered by Claire W. Maths tutor

2294 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Shape ABCD is a parallelogram. Y is the mid-point of AB and Z is on BC such that BZ=1/2ZC. Given that AB=a and BC=b, describe, in terms of a and b: a) AC b)CY c)YZ


factorise 2x^2 - x - 6


A shop sells bags of crisps in different size packs. There are 18 bags of crisps in a small pack (£4), 20 bags of crisps in a medium pack (£4.99) and 26 bags of crisps in a large pack (£6). Which size pack is the best value for money?


A curve has equation y = x^3 - 48x. The point A on the curve has x coordinate -4. Is A a stationary point?


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences