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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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