Question

solve this using identify (502)²
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Answer 1

$(502) {}^{2} = (500 + 2) {}^{2}$

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

$(500 + 2) {}^{2} = (500) {}^{2} + (2) {}^{2} + 2(500)(2)$

$250000 + 4 + 2000$

$= 252004$

Answer 2

Answer:

(502)²

(500+2)²

we know ,(a+b)²=a²+b²+2ab

so,

(500)²+(2)²+2×500×2

=250000+4+2000

=2520004 is the answer