If x=3 and y=7, which of the following gives value of 23?
1.) y2/x2.) x2+2y3.) xy4.) y2-2x2
MM
Related Maths KS3 answers
All answers ▸Solve the following simultaneous equations: 2y + 3x = 19 and 7x + y = 26.
A piece of wire is 240cm long. Peter cuts two 45 cm lengths off the wire. He then cuts the rest of the wire into as many 40cm length as possible. How many wires of 40cm can be cut?
(x+3)(x+2)
How can I factorise x^2 - 7x + 12?