Question

Evavulate using identities
(I) ( 58) square
(II) ( 3.1 ) square
( III) ( 151) square
please answer my question ​

Answer 1

here's your answer

(I) solution :- (58)²

= (60-2)²

= 60²-2×60×2+2²

= 3600-240+4

= 3360+4

= 3364

(ii) solution:-( 3+0.1)²

3²+2×3×0.1 +0.1²

9 + 0.6 +0.01

9.6+0.01

9.61

(iii) solution :- (150+1)²

150²+2×150×1+1²

22500+300+1

22800+1

22801

hope it helps you!