Question

1] Write the signs convention of the coordinates of a point in the second quadrant.
2] Factorise: 125x^3 - 64y^3

Answer 1

Step-by-step explanation:

Since both terms are perfect cubes, factor using the difference of cubes formula, a3−b3=(a−b)(a2+ab+b2) a 3 - b 3 = ( a - b ) ( a 2 + a b + b 2 ) where a=5x a = 5 x and b=y . Simplify.