Factorise h^2 - 36.
Notice that 36 is a square number equivalent to 62 . Can also tell this as the expression contains no coefficients of h so they must cancel each other out. Using this information we can deduce that the factors of the expression must be (h-6)(h+6) as it is the difference of 2 squares.
EC
Related Maths GCSE answers
All answers ▸Here is a right-angled triangle (base = 8cm and height = 9cm) and a rectangle (length = 16cm). The area of the rectangle is 6 times the area of the triangle. Work out the width of the rectangle.
Solve the simultaneous equations: 6x - 5y = 17, 3x + 8y = 10
Find the value of 'x' and state which angle on triangle ABC is smallest. A = right angle, B = 2x + 30, C = 2x
How do i answer a problem solving question if I don't know where to start?