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Find the Square of 2x − 3y + Z - Mathematics

Sum

Find the square of 2x − 3y + z

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Solution

(2x − 3y + z)2 = (2x)2 + (−3y)2 + (z)2 + 2 × 2x × −3y + 2(−3y) × z + 2 × z × 2x

= 4x2 + 9y2 + z2 − 12xy − 6yz + 4zx

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APPEARS IN

Selina Concise Mathematics Class 8 ICSE
Chapter 12 Identities
Exercise 12 (B) | Q 2.09 | Page 152
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