Question

Find the value of p
$3p \: = ( {28}^{2} ) - ( {23}^{2} )$
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Answer 1

$\huge\mathbb{SOLUTION}$

$\implies\sf 3p\;=\;(28)^2-(23)^2$

$\implies\sf 3p\;=\;(28-23)(28+23)$

$\implies\sf 3p\;=\;5×51$

$\implies\sf 3p\;=\;255$

$\implies\sf p=\frac{255}{3}$

$\implies\sf p\;=\;85$

Note :-

a²-b² =(a+b)(a-b)

Answer 2

$\huge\bold\pink{↓SolutiOn↓}$

=> 3p = (28)² - (23)²

=> 3p = (28+23)(28-23)

=> 3p = 51 × 5

=> 3p = 255

=> p = 255/3 = 85