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how would you solve this problem? I don't know how to find the 2nd term, but I already found the first and 3rd term. (7-3x)^2

Respuesta :

isabellacortez034

Answer:

7-3=4x2=8 maybe i dont know

Answer:

Step-by-step explanation:

FOIL ?  know it?  first, outside , inside , last

(7-3x)(7-3x)

49 -21x -21x + 9[tex]x^{2}[/tex]

49 - 42x + 9[tex]x^{2}[/tex]

write it in descending order ( of x )

9[tex]x^{2}[/tex] -42x + 49

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