Question

SIMPLIFY THIS = (13r - 12k)³ + (13r +12k)³
FASTTTT

Answer 1

Use the formula a^3 + b^3 =(a+b)(a^2+b^2-ab)

By using the above formula,y you will get the answer (26r)(
${13}^{2} + {12}^{2} + {13}^{2} + {12}^{2}$
-169r^2+144k^2.


Hope you understood.