Question

simplify using shortcut method - (39) cube

Answer 1

we have to find 39³ by shortcut method

so we have an identity_(a+b)³=(a+b)(a²+2ab+b²)
39=30+9
(30+9)³=30+9(30²+2*30*9+9²)
=(900+540+81)39
=1521*39
=59319
If satisfied please mark it as brainliest

Answer 2

Answer:

cube and square 39 ka nikalna hai