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Factories by Taking Out Common Factors: Ab(A2 + B2 - C2) - Bc(C2 - A2 - B2) + Ca(A2 + B2 - C2)

Factories by taking out common factors :
ab(a²+ b²- c²) - bc(c²- a²- b²) + ca(a²+ b²- c²)

Sum

ab(a²+ b²- c²) - bc(c²- a²- b²) + ca(a²+ b²- c²)

= ab(a²+ b²- c²) + bc(a²+ b²- c²) + ca(a²+ b²- c²)

= (a²+ b²- c²)[ab + bc + ca]

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Chapter 5: Factorisation - Exercise 5 (A) [Page 68]

Chapter 5 Factorisation
Exercise 5 (A) | Q 3 | Page 68

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