THEMATICS
6. Using identities, evaluate
(i) 71 ^2
Answers
Answered by
1
Answer:
142
Step-by-step explanation:
,................................
Answered by
0
Step-by-step explanation:
=71^2
=(70 +1)^2
=(a+b)^2
=a^2+2*a*b+b^2
=(70)^2 + (2*70*1) + 1^2
=4900+140+1
=5041
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