Question

68²-32²
Which identity is used?

$\tt \underline\red{NOTE}$
$\rm \: solve \: this \: using \: identities.$
Wrong answers will be reported.​

Answer 1

Answer:

third identity

=(68-32)(68+32)

=36×100

=3600

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Answer 2

Answer:

IDENTITY: ( a+b) ( a-b)= a²-b²

Step-by-step explanation:

hence,

a=68 nd b= 32

68²-32² = (68+32) (68-32)

= (100) (36)

= 3,600

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