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Evaluate: (2 − Z) (15 − Z) - Mathematics

Sum

Evaluate: (2 − z) (15 − z)

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Solution

(2 − z) (15 − z) = 2(15 − z) −z(15 − z)

= 30 − 2z − 15z + z2

= 30 − 17z + z2

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APPEARS IN

Selina Concise Mathematics Class 8 ICSE
Chapter 12 Identities
Exercise 12 (D) | Q 1.4 | Page 155
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