exam Maths Puzzle Numerical Ability

Could someone explain how to solve this problem by multiplying?

8 x a^3+64
___________
3a+12 x 12
Thanks

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exam Other Question

YOLANDA IS MAKING STAICASE SHAPES BY USING SQUARE TILES.HOW MANY TILES WILL SHE NEED TO MAKE A STAIRCASE THAT IS 10 TILES TALL? set up and splve in a triangle the measure of the first angle is twice the measure of the second angle. The measure of the third angle is 20 degrees less than the second angle. What us the measure of each angle?