Verification of identities: (x + y + z)2 = x2 + y2 + z2 + 2xy + 2yz + 2zx , (x ± y)3 = x3 ± y3 ± 3xy (x ± y), x³ ± y³ = (x ± y) (x² ± xy + y²), x3 + y3 + z3 - 3xyz = (x + y + z) (x2 + y2 + z2 - xy - yz - zx) and their use in factorization of pol
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- CBSE Class 9
- Chapter 2: Polynomial
- Verification of identities: (x + y + z)2 = x2 + y2 + z2 + 2xy + 2yz + 2zx , (x ± y)3 = x3 ± y3 ± 3xy (x ± y), x³ ± y³ = (x ± y) (x² ± xy + y²), x3 + y3 + z3 - 3xyz = (x + y + z) (x2 + y2 + z2 - xy - yz - zx) and their use in factorization of pol Notes