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Factorise: 6xy(a2 + b2) + 8yz(a2 + b2) −10xz(a2 + b2) - Mathematics

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Question

Factorise: 6xy(a2 + b2) + 8yz(a2 + b2) −10xz(a2 + b2)

Sum

Solution

6xy(a2 + b2) + 8yz(a2 + b2) − 10xz(a2 + b2)

Since (a2 + b2) is common in all three terms, factor it out:

(6xy + 8yz − 10xz)(a2 + b2)

Now the expression is:

(6xy + 8yz − 10xz)(a2 + b2)

Factorize the trinomial 6xy + 8yz − 10xz

6xy + 8yz − 10xz = 2y(3x + 4z) − 2z(5x).

y(3x + 4z) − 2z(5x) = 2(3x + 4z)(y − z).

The fully factorized form of the original expression is:

2(3x + 4z)(y − z)(a2 + b2)

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Chapter 13: Factorisation - Exercise 13 (A) [Page 157]

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Selina Concise Mathematics [English] Class 8 ICSE
Chapter 13 Factorisation
Exercise 13 (A) | Q 17 | Page 157
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