Question

The value of (72)^2-(28)^2 ​

Answer 1

Answer:

we know that,

a²-b²=(a+b)(a-b)

72²-18²=((72+18)(72-18)

=90×54

=4860

Step-by-step explanation:

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Answer 2

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Step 1:

Calculate 72 to the power of 2 and get 5184.

$5184 - {28}^{2}$

Step 2:

Calculate 28 to the power of 2 and get 784.

$5184 - 784$

Step 3:

Subtract 784 from 5184 to get 4400.

$= 4400$