m3rk098 m3rk098
  • 25-04-2018
  • Mathematics
contestada

hey:) can you please help me posted picture of question

hey can you please help me posted picture of question class=

Respuesta :

Louli
Louli Louli
  • 25-04-2018
Answer:
x² - 10x + 21

Explanation:
To answer this question, we will simply multiply each term from the first bracket by each term from the second and then combine like terms to get the final expression.

This can be done as follows:
(x - 3)(x - 7)
x(x) + x(-7) -3(x) -3(-7)
x² - 7x - 3x + 21
x² - 10x + 21

Hope this helps :)
Answer Link
Shclark2020
Shclark2020 Shclark2020
  • 25-04-2018
Use F.O.I.L (first, outer, inner, last)
(x-3)(x-7)
x^2*-7x*-3x*21
simplify
x^2-10x+21
Answer Link

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