ih61824 ih61824
  • 29-10-2019
  • Mathematics
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[tex] ( x + 20){2} [/tex]
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jasonsli1223
jasonsli1223 jasonsli1223
  • 29-10-2019

Answer:

[tex]x^{2}[/tex] + 40x + 400

Step-by-step explanation:

[tex](x + 20)^{2}[/tex]

(x + 20)(x + 20)

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

[tex]x^{2}[/tex] + 20x + 20x + 400

[tex]x^{2}[/tex] + 40x + 400

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