Question

21. Simplify using suitable identity : -

186 x 186 X186 +14 X 14 X 14
—————————————————
186 X 186-186 X 14 +14 x 14

​

Answer 1

Answer:

200

Step-by-step explanation:

186x186x186+14x14x14

___________________

186x186-186x14+14x14

(186)^3 + (14)^3

= ---------------------

{ (186)^2-186x14+(14)^2}

(186+14) { (186)^2-186x14+(14)^2}

=----------------—---------------------------

{(186)^2-186x14+(14)^2}

=(186+14)

=200

Answer 2

200 is the right answer