Question

answer fast!!!!!!20 marks question but answer properly!!!!

Answer 1

ⓗⓔⓨ ⓕⓡⓘⓔⓝⓓ 

ⓗⓔⓡⓔ ⓘⓢ ⓨⓞⓤⓡ

ⓐⓝⓢⓦⓔⓡ

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$23 {}^{2} = (20 + 3) {}^{2} = 400 + 9 + 120 = 529$
$the \: identity \: (a + b) { }^{2} method \: is \: used \: here$

$<b > similarly$
$75 {}^{2} = (70 + 5) {}^{2} = 4900 + 25 + 700 = 5625$

$<marquee > hope it helps you$

@ Prabhudutt.....


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