Question

a) (a + 1)(a - 1)(a? + 1) can be simplified to (a" - 1).
b) A cube of side 2 cm is cut into equal cubes of side 1 cm. The total surface area of the
cubes that are cut out is 192 cm2​

Answer 1

a) (a + 1)(a - 1)(a? + 1) can be simplified to (a" - 1).

b) A cube of side 2 cm is cut into equal cubes of side 1 cm. The total surface area of the

cubes that are cut out is 192 cm2