evalute:(57)³by using identity
(step by step in book)
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Answer:185193
Step-by-step explanation:
Given,
(57)^3
(50+7)^3
Identity :
( a + b )³ = a³ + b³ + 3ab ( a + b )
= 50^3 + 7^3 + 3×50×7 ( 50+7)
=125000+343 + 1050 ( 57)
=125000+343 + 59850
=185193
Hope this helps you
(^_^)
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