Question

find the squares of 214 by using the identity a plus b squared is equal to a squared + 2 a b + B squared​

Answer 1

Answer:

$( {200 + 14)}^{2} = {200}^{2} + {14}^{2} + 2 \times 200 \times 14 \\ 40000 + 196 + 2800 \\ 42996$

Hope it helps✌️✌️✌️✌️✌️

Answer 2

Answer:

(214)^2=(200+14)^2=(200)^2+(14)^2+2×200×14=40000+196+5600=45796