sum of cubes

The sum of two positive numbers is 180. Find the smallest possible value for the sum of their cubes. => 1458000 or 180 or 729000 or 360..

The sum of two positive numbers is 12. Find the minimum possible value of the sum of the cubes of these numbers. => 66 or 432 or 72 or 1728..

The surface area of a cube is equal to the sum of the measures of its edges. What is the measure of each edge of the cube? => 3 units. or 5units. or 2 units. or 4units...

Find the difference between the probability of getting a sum of 8 and the probability of getting a sum of 3 when two number cubes are rolled. => 1 18 or 1 12 or 1 36 or 1 9..

Jerald rolled 2 number cubes and recorded the sum of the numbers rolled. Find the experimental probability for getting a sum of 7. => 1 or 1 20 or 1 10 or 1 30..

Two number cubes are rolled. What is the probability of rolling a sum greater than 10? => 1 4 or 1 12 or 5 12 or 1 6..

Find the sum of the volumes of the 3 cubes shown if a = 4 m, b = 6 m and c = 8 m. => 782 m 3 or 792 m 3 or 842 m 3 or 892 m 3..

(i) Common factors (ii) By expressing as difference of squares (iii) By grouping (iv) Trinomials (v) Sum or difference of cubes..

1. To find the sum of first n natural numbers. 2. To find the sum to squares of first n natural numbers. 3. To find the sum to the cubes of first n natural numbers. 4. Method of finding sum of a series whose nth term is know..

Writing a polynomials as the product of two or more polynomials is called factorisation. If A = B x C, B and C are called factors of A. Methods of Factorisation: (i) Common factors (ii) By expressing as difference of squares (iii) By grouping (iv) Trinomials (v) Sum or difference ..