Question

Expand using suitable identity (98)^3​

Answer 1

Mate this is your answer

Answer 2

Answer

$98^{3} = 941192$

Step-by-step explanation:

$98^{3}$

=$(100-2)^{3}$                                                    

∴$(100-2)^{3}$⇒$100^{3}-2^{3}-3(100)(2)(100-2)$       By $(a-b)^{3}=a^{3}-b^{3}-3ab(a-b)$

                  = 1000000-8-600(98)

                  = 1000000-8-58800

                  = 941192

∴$98^{3} = 941192$