Math, asked by meenakshi010179, 9 months ago

find the square of 35 by (a+b)square=a square+20b+b square

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Answered by Mihir1001

$\huge{\underline{\mathfrak{\textcolor{blue}{Answer :}}}}$

$\huge\boxed{\fcolorbox{red}{#ffdfff}{square of 35 = 1225}}$

$\LARGE{\underline{\mathrm{\textcolor{red}{Step-by-step \: \: explanation :}}}}$

We have,

${(35)}^{2}$

$= {(30 + 5)}^{2}$

$= {(30)}^{2} + 2(30)(5) + {(5)}^{2}$ —————[ $\because {(a + b)}^{2} = {a}^{2} + 2ab + {b}^{2}$ ]

$= 900 + 300 + 25$

$= 1225$

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Answered by singamrajesh9

(30+5)²= 30²+5²

= 900+25

925

So, 35²=925.

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find the square of 35 by (a+b)square=a square+20b+b square