Question

using identities evaluate: 5.27*5.27 - 0.27*0.27​/5.54

Answer 1

Answer:

using a squared - b squared =(a+b)(a-b)

the answer is 5

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Answer 2

Step-by-step explanation:

(x+y)(x-y)=x²-y²

(5.27-4.73)(5.27-4.73)-(0.27+4.73)(0.27+4.73)/(5.54-5.23)

0.27*0.27-5.27*5.27/0.27

0.0729-27.7729/0.27

-102.6271