Question

using the formula (a2 + b2) = ( a2 + 2ab + b2 ) evaluate:- 310

this 2 is for squaring.. except 2ab​

Answer 1

✯$\huge\underline\mathfrak\purple{Answer}$✯

a = 300

b = 10

by formula :-

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

${(300 + 10 )}^{2} = { (300 ) }^{2} + {(10)}^{2} + 2 ( 300 )( 10 )$

${(300 + 10 )}^{2}$ = 90,000 + 100 + 6,000

= 96,100 ans.

Hence , the answer is 96,100

Answer 2

${\underline{\boxed{\tt{\green{( a + b )^2 = a ^2+ b ^2 + 2ab }}}}}$

$\implies( 310 )^2$

$\implies ( 300 + 10 )^2$

$\implies 300^2 + 10^2 + 2\times 300 \times 10$

$\implies 90000 + 100 + 6000$

$\implies 96100$

${\underline{\boxed{\tt{\purple{310^2 = 96100 }}}}}$

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