Question

the value of 501 X 502​

Answer 1

Answer:

251502

Step-by-step explanation:

Answer 2

501 × 502

( x+a) (x+b)

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When the number is same we use this identity:-

$x {}^{2} \: + (a + b)x + ab$

$= > (500) {}^{2} \: + (1 + 2) \: (500) + 1 \times 2 \\ \\ = > 2500 + 3 + 500 + 2 \\ \\ = > 251202$

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