Find square of 14 and 19 by using formula.

Given :

The given numbers are 14 and 19.

To do :

We have to find square of 14 and 19 by using formula.

Solution :

To find the squares of the numbers we can use the following formulas:

$(a + b)^2 = a^2 + b^2 + 2ab$

$(a - b)^2 = a^2 + b^2 - 2ab$

$14^2 = (10 + 4)^2 = 10^2 + 4^2 + 2(10)(4) = 100 + 16 + 80 = 196$.

$19^2 = (20-1)^2 =20^2 + 1^2-2(20)(1) = 400+1-40 = 361$.

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Updated on: 10-Oct-2022

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