Question

Using the formula (a-b) = a^2 -2ab+b^2, evaluate (499)^2​

Answer 1

Step-by-step explanation:

449²=(500-1)²

=500²-2(500)(1)+1²

=250000-1000+1

=249001

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Answer 2

Answer:

249001

Step-by-step explanation:

$( {499}^{2} ) =$

${(500 - 1)}^{2}$

$= {(500)}^{2} + {(1)}^{2} - 2 \times 500 \times 1$

$= 250000 + 1 - 1000$

$= 249001$

This is your answer.