ICSE Class 9 Answered
Find the product of:
( 3p - q + 4)(3p - q - 7)
Asked by bhengrajp | 19 May, 2019, 05:14: PM
Expert Answer
( 3p - q + 4)(3p - q - 7)
= 9p2 - 3pq - 21p - 3pq + q2 + 7q + 12p - 4q - 28
= 9p2 + q2 -6pq - 9p + 3q - 28
= (3p - q)2 -3(3p - q) - 28
Answered by Yasmeen Khan | 20 May, 2019, 10:07: AM
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