Given the area of the pool is 63m^2, what is the value of x?

(There is a diagram showing a rectangle with one side labelled x+4 and another labelled x+6)Area = (x+4)(x+6)63m^2 = x2+10x+240 = x2+10x-390 = (x-3)(x+13)
x-3=0 so x=3x+13=0 gives x=-13, which cannot be a length, so the answer is 3m

TG
Answered by Toby G. Maths tutor

2845 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

What are surds and why are they used?


Solve the simultaneous equations to find the values of x and y: 3x + 5y = -4 and 10x - 4y = -34


Find Solution to x^2 + x - 2=0


A GCSE is graded out of 140 marks. 1/5 of these marks were given for coursework. The rest were divided between two reading and listening tests, with the marks split in the ratio 3:4 respectively. How many marks were given for the reading test?


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2025 by IXL Learning