If a rectangle has length (x-4), width (x-5) and area 12 then what is the value of x?

length x width = area (as rectangle)(x-4)(x-5)=12x2-9x+20=12x2-9x+8=0(x-8)(x-1)=0x=8 or x=1 <---- x can't be 1 as we would get negative length and widthx=8

Answered by Simon M. Maths tutor

3114 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Given that 3cm and 4cm are the shorter sides of a right-angled triangle, find the length of the hypotenuse.


Factorise: 6x^2-3x-3=0


There are 5 white socks and 3 black socks in a draw. Steven takes out 2 at random. Work out the probability that Steven takes out 2 socks of the same colour.


Solve the simultaneous equation: 3x+y=-2, -7x+5y=34.


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