Question

Evaluate using identity:(98)3​

Answer 1

Step-by-step explanation:

98 ^3 can be written as ( 100 - 2 ) ^3

so, we'll use the identify

( a- b) ^3 = a^3 - b^3 - 3a^2b + 3ab^2

( 100 -2 )^3 = 100^3 - 2^3 -3 ( 100^2)(2) + 3(100) (2^3)

1000000 - 8 - 60000 + 1200

= 941192

answer

Answer 2

(98) 3

Step-by-step explanation:

we can multiply this by using distributive property

first split 98 into 100-2 ie 98=100 -2

100 (98) 3= (100-2) 3

100(3) -2(3)

300-6

294