Question

Evaluate using suitable identities : a) 99 cube b) 106 cube c ) 85 square -75 square d) 204 x 196 please answer it fast

Answer 1

Also, the equation of the form x^3 - d y^3 = 1 has a solution for which y= 3 if and only if d = u(27 u^2 + 9 u + 1) for some integer u, for example; the equation x^3 - 37 y^3 = 1 has a solution in nonzero integers which is (10, 3).

Thus the equation x^3 - d y^3 = 1 is nontrivially solvable for certain values of d.

Rewriting this equation as x^3 + (_1)^3 = d y^3, then equation of the form x^3 + Z^3 = d y^3 are studied in [*] Chapter The Cubic Analogue of Pell’s Equation .

plz make it as brainleast

Answer 2

Answer:

this is my channel

art and craft theater