Question

find the value of (55)^3 - (25)^3 - (30)^3.

Answer 1

Let a = 55,

b = -25

c = -30

then,

a + b + c = 55 - 25 - 30 = 0

$\implies \: {a}^{3} + {b}^{3} + {c}^{3} = 3abc \\ \\ {(55)}^{3} + {( - 25)}^{3} + {( - 30)}^{3}$

= 3(55) (-25) (-30)

= 123750.

Answer 2

Hey mate.....

here's ur answer.....

a = 55
B = -30
c = -25

a + B + c

55 - 30 - 25

25 - 25 = 0

==== a^3 + b^3 + c^3 = 3abc....

3(55)(-30)(-25)

$<marquee>= 123750</marquee>$

Hope it helps❤❤❤