9. Prove that (a +b +c)^3 -a^3 -b^3 – c^3 =3(a +b)(b +c)(c +a).

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9. Prove that (a +b +c)^3 -a^3 -b^3 – c^3 =3(a +b)(b +c)(c +a).
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9. Prove that (a +b +c)^3 -a^3 -b^3 – c^3 =3(a +b)(b +c)(c +a). 9. Prove that (a +b +c)^3 -a^3 -b^3 – c^3 =3(a +b)(b +c)(c +a). June 28, 2021 Category: Chapter 2 - Polynomials , Maths , NCERT Class 9 ,
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