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Find the equation of a line which goes through the points (1,0) and (2,5) in the form of y=mx+c

y = 5x - 5
SJ
Answered by Suleiman J. • Maths tutor
3419 Views

Expand the following quadratic (x+3)(2x-2)

When expanding quadratics, the ‘smiley face’ method is the easiest one to follow. Do each term individually. The lines you draw between the terms will resemble a smiley face. Ensure that there are 2 lines fr...
JL
Answered by Jordan L. • Maths tutor
3982 Views

Solve x^2 -4x=12

1:Firstly, put all the terms on the Left Hand Side, leaving only 0 on the right hand side2: Factorise the equation a) think about what multiples can be used to calculate -12 1*-12=-12 and -1 12=-12 2 -6=-12 ...
EM
Answered by Elisabeth M. • Maths tutor
3266 Views

A football pitch has a length of the xm. Its width is 25m shorter than the length. The area of the pitch is 2200m2. Show that x2 - 25x - 2200 =0 and work out the length of the football pitch.

Draw rectangle with length x and width (x - 25)show that area = length * width = x(x -25) = x2 - 25xx2 - 25x = 2200x2 - 25x -2200 = 0This cannot be factorised therefore must use quadratic equation: x = [-b +...
SO
Answered by Sophie O. • Maths tutor
3922 Views

Expand and simplify (x-2)(2x+3)(x+1)

To simply this expression means to write this same expression in its lowest terms. The first step we need to do is expand two of these brackets, we will start with the bracket in the middle and the last brac...
SM
Answered by Shayma M. • Maths tutor
5095 Views