Question

Evavulate using identities
(I) ( 58) square
(II) ( 3.1 ) square
( III) ( 151) square
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Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Answer:

(I)

  58²

= (50+8)²

Identity: (a + b)²  =  a² + 2ab + b²

= (2500+800+64)

= 3364

(II)

  3.1²

= (3+0.1)²

Identity: (a + b)²  =  a² + 2ab + b²

= (9+0.6+0.01)

= 9.61

(III)

  151²

= (150+1)²

Identity: (a + b)²  =  a² + 2ab + b²

= (22500+300+1)

= 22801