Math, asked by thakathaakpt007, 5 days ago

using identities , To evaluate : (12. 7 ) ^2 - ( 7. 9 ) ^2​

Answers

Answered by 101Jaatni
1

Answer:

 {a}^{2}  -  {b}^{2}  = {a + b } \:  \: {a - b}

Applying this formula to question we get ,

=(12.7+7.9)(12.7-7.9)

=(20.6)(4.8)

=98.88

Step-by-step explanation:

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