This worksheet is about working out the difference of two squares numbers.
We use the fact that a2 - b2 factorises to (a + b) (a - b)
Work out the difference of these two squares.
|4852 - 4832||=||
We need to work out (485 - 483) (485 + 483)
Notice that the first bracket equals 2.
So this is 2 (968) = 2 x 968 = 1936