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Tasya [4]
2 years ago
10

Can someone answer my question? For all x, (3x+7) ^2=?

Mathematics
2 answers:
LuckyWell [14K]2 years ago
5 0

Answer:

If that's +42x + 49, the answer is (3x + 7)(3x + 7) or (3x +

7)2

If that's -42x + 49, the answer is (3x - 7)(3x - 7) or (3x -

7)2

Wittaler [7]2 years ago
5 0

\\ \tt\longmapsto (3x+7)^2

  • (a+b)^2=a^2+2ab+b^2[/tex]

\\ \tt\longmapsto (3x)^2+2(3x)(7)+(7)^2

\\ \tt\longmapsto 9x^2+42x+49

Done

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