using suitable identity, evaluate 1 1215 * 1185
My self Krishna Kumar class 8 age 14 from Dhanbad
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Answer:
1439775
Step-by-step explanation:
1215*1185
= (1200+15) * (1200-15)
= 1200^2 - 15^2
= 1440000 - 225
= 1439775
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