Question

chapter:polynomial
Evalute
(215)²​

Answer 1

(200+15)^2

200^2+2×200×15+(15)^2

40000+6000+225

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Answer 2

$(200 + 15)^{2}$

$200^{2} + {15}^{2} + 2 \times 200 \times 15$

$40000 + 225 + 6000$

$46225$

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