Write the Value of 25³ − 75³ + 50³

Write the Value of 25³ − 75³ + 50³

Question:

Write the value of \(25^3 – 75^3 + 50^3\).

Solution

We know that

\[ a^3+b^3+c^3-3abc=(a+b+c)(a^2+b^2+c^2-ab-bc-ca) \]

Let

\[ a=25,\quad b=-75,\quad c=50 \]

Then,

\[ a+b+c=25-75+50 \]

\[ a+b+c=0 \]

Therefore,

\[ a^3+b^3+c^3=3abc \]

Substituting the values:

\[ =3(25)(-75)(50) \]

\[ =-281250 \]

Therefore,

\[ \boxed{-281250} \]

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