Question

without calculating the cubes find the value of 25³-21³-4³​

Answer 1

Answer:

the answer is= 6300

Step-by-step explanation:

=25cube-21cube-4cube

=15625-9261-64

=6364-64

=6300

Answer 2

hey ..

we know that ,x^3+y^3 + z^3 = 3xyz

if x + y + z= 0

x= 25

y= -21

z= -4

so x+y+z = 25+(-21) +(-4)

=> x+y+z =0

so, 25³-21³-4³

25³+(-21³)+(-4³) = 3xyz

=> 3×25× -21× -4

=>6300 answer