Question

show that (3-7)² is not equal to 3²-7².​

Answer 1

answer of your question

Answer 2

Step-by-step explanation:

(3-7)²=a²+b²-2ab

=3²+7²-2.3.7

=9+49-42

=16

3²-7²=(a+b)(a-b)

=(3+7)(3-7)

=10×(-4)

= -40

Hence,they are not equal

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