jennapar7Jesswegesn
jennapar7Jesswegesn jennapar7Jesswegesn
  • 18-06-2016
  • Mathematics
contestada

What are the factors of x2 + 3x – 4?

(x + 4) and (x – 4)
(x + 3) and (x – 4)
(x + 4) and (x – 1)
(x + 3) and (x – 1)

Respuesta :

Kuku861
Kuku861 Kuku861
  • 20-06-2016
I get a list of zeroes: x = ±1, –3, 2 ... For instance, for x = 2 to be a solution, then I must have solved the factor equation x – 2 = 0, which means that x – 2 must have been a ... Find the quadratic with zeroes at x = 3/2 and x = –5/4
Answer Link
jhonyy9
jhonyy9 jhonyy9
  • 21-06-2016
x^2 +3x -4 = 
x*x -x +4x -4 =
x(x-1) +4(x-1)=
(x+4)(x-1)

so the 3rd choice is right sure 
Answer Link

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