jjohnson0709 jjohnson0709
  • 22-01-2022
  • Mathematics
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Can someone answer my question? For all x, (3x+7) ^2=?

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Аноним Аноним
  • 22-01-2022

[tex]\\ \tt\longmapsto (3x+7)^2[/tex]

  • (a+b)^2=a^2+2ab+b^2[/tex]

[tex]\\ \tt\longmapsto (3x)^2+2(3x)(7)+(7)^2[/tex]

[tex]\\ \tt\longmapsto 9x^2+42x+49[/tex]

Done

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