amaniqx
amaniqx amaniqx
  • 13-06-2021
  • Mathematics
contestada

factorise x squared + x - 12

Respuesta :

mathsstudent1 mathsstudent1
  • 13-06-2021

Answer:

(x+4)(x-3)

Step-by-step explanation:

Answer Link
jimrgrant1 jimrgrant1
  • 13-06-2021

Answer:

(x + 4)(x - 3)

Step-by-step explanation:

Given

x² + x - 12

Consider the factors of the constant term (- 12) which sum to give the coefficient of the x- term (+ 1)

The factors are + 4 and - 3 , since

4 × - 3 = - 12 and 4 - 3 = + 1 , then

x² + x - 12 = (x + 4)(x - 3) ← in factored form

Answer Link

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