Find the value of (30)2 - (20)2 using a suitable identity.
Answers
Answered by
5
500
Step-by-step explanation:
a^2-b^2=(a-b)(a+b)
(30-20)(30+20)
(10)(50)
10×50
500
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Answered by
1
Answer:
500
Step-by-step explanation:
(30)2-(20)2
900-400
500
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