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Mamont248 [21]
2 years ago
11

" align="absmiddle" class="latex-formula">
​
Mathematics
1 answer:
Artist 52 [7]2 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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Step-by-step explanation:

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