expand using the identity (188)^2
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Step-by-step explanation:
split 188 as 200 - 12
we can use identity (a - b)² = a² - 2ab + b²
(200 - 12)² = 200² - 2×200×12 + 12²
= 40000 - 4800 + 144
= 40000 - 4656
= 35344
alternative method
188 = 100 + 88
using (a + b)² = a² + 2ab + b²
(100 + 88)² = 100² + 2×100×88 + 88²
= 10000 + 17600 + 7744
= 35344
Hope you get your answer
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