1. Factorise :
(1) 7x2 + 18xy - 9y2
Answers
Answered by
2
Answer:
7×2+18xy-9y2
14+18xy-9y2
Answered by
3
23y2
Step-by-step explanation:
7×2+18xy- 9y2
14+18xy- 9y2
32- 9y2
23y2
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