Question

Factorise :125x^3-27y^3-225^2y+135xy^2​

Answer 1

Answer:

125x3 – 27y3 – 225x2y + 135xy2 Above expression can be written as (5x)3−(3y) 3−3(5x)2(3y) + 3(5x)(3y)2 Using: a3 − b3 − 3a2b + 3ab2 = (a−b)3 = (5x − 3y)3

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Answer 2

Answer:

Importance of The Universal Law of Gravitation

It binds us to the earth. It is responsible for the motion of the moon around the earth. It is responsible for the motion of planets around the Sun. Gravitational force of moon causes tides in seas on earth.