Expressions & Formulae
Factorise
px+qx+py+qy = x( ) + y ( )
x(p+q)+y(p+q)5(x+y)(p+q)
How do you find the area of a circle?
A = π r2
Factorise
x2 + 3x
x(x13)
How to find volume of prism?
Area x height
Simplify
2a2 + 7a2
9a2
How to find length of arc?
x/360 x π d
Expand the brackets
p(p+3q-5r)
p2 + 3pq + -5pr
How do you find sector area?
x/360 x πr2
Expand and Simplify
2 (x-3y) +3 (y-2z) +4 (z-5x)
-18x - 3y - 2z
How do you find area of triangle?
A = 1/2b x h