<img src="https://tex.z-dn.net/?f=%20%28%20x%20%2B%2020%29%7B2%7D%20" id="TexFormula1" title=" ( x + 20){2} " alt=" ( x + 20){2}

Mamont248 [21]

3 years ago

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Mathematics

1 answer:

Artist 52 [7]3 years ago

7 0

Answer:

$x^{2}$ + 40x + 400

Step-by-step explanation:

$(x + 20)^{2}$

(x + 20)(x + 20)

(x)(x) + (x)(20) + (20)(x) + (20)(20)

$x^{2}$ + 20x + 20x + 400

$x^{2}$ + 40x + 400

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