humyneha004 humyneha004
  • 15-08-2022
  • Mathematics
contestada

producer of [tex]x^{2} -4x-21[/tex]

Respuesta :

fieryanswererft
fieryanswererft fieryanswererft
  • 15-08-2022

Answer:

(x - 7)(x + 3)

Explanation:

[tex]\rightarrow \sf x^2 - 4x - 21[/tex]

breakdown

[tex]\rightarrow \sf x^2 - 7x +3x- 21[/tex]

factor out common terms

[tex]\rightarrow \sf x(x - 7) +3(x- 7)[/tex]

collect into groups

[tex]\rightarrow \sf (x+3)(x- 7)[/tex]

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