Seudónimo Seudónimo
  • 02-03-2020
  • Mathematics
contestada

Simplify the product using FOIL. (3x – 7)(3x – 5)


9x2 – 36x – 35

9x2 – 36x + 35

9x2 + 36x + 35

9x2 + 6x + 35

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Hrishii
Hrishii Hrishii
  • 02-03-2020

Step-by-step explanation:

[tex](3x - 7)(3x - 5)\\ Applying \: FOIL\: Method:\\ \\FIRSTS = 3x \times 3x = 9 {x}^{2} \\ \\ OUTERS = 3x \times ( - 5) = - 15x \\ \\ INNERS = - 7 \times 3x = - 21x \\ \\ LASTS = - 7 \times ( - 5) = 35 \\ \\ adding \: all \\ \\ 9 {x}^{2} - 15x - 21x + 35 \\ \\ \huge \red { \boxed{ = 9 {x}^{2} - 36x + 35}} \\ is \: the \: correct \: answer.[/tex]

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