Question

Solve by using Algebric equation
( 105)^3

No calculator

Answer 1

No need to use algebra here, it's simple.

105³ = 105×105×105 = 1,157,625

Answer 2

Answer:

1157625

Step-by-step explanation:

(105) ^3 = (100+5) ^3

Now, you have to use the formula of ( a + b ) ^3,

which is a^3 + b^3 + 3a^2b + 3ab^2.

So, 105^3 = 100^3 + 5^3 + 3*100^2*5 + 3*5^2*100

= 1000000 + 125 + 150000 + 7500

= 1157625