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

2662 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Olly drove 56 km from A to B. He then drives 61 km from B to C. Olly’s average speed from A to B was 70 km/h. Olly took 75 minutes to drive from B to C. Work out Olly’s average speed for his total drive from A to C.


Rationalise the denominator of 2/(3-sqrt(2)).


Solve for x: 2x^2 = 5x + 12


Which of the following lines is not perpendicular to y=2x+1? (A) y+1/2x=6 (B) 2y=4-x (C) 2x+y=4 (D) y=-1/2(7+x)


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