SheMichebIonatash SheMichebIonatash
  • 21-11-2016
  • Mathematics
contestada

which of the following is a factor of 7x^2 -12x-4?
a) x+2
b)none of the above
c)7x-2
d)x-4 ...?

Respuesta :

antonsandiego
antonsandiego antonsandiego
  • 21-11-2016

After simplifying you will get (7x+2)(x-2)=0. This means that the answer is 

b)none of the above 
Answer Link
JackelineCasarez JackelineCasarez
  • 31-12-2018

Answer:

The factors of the  7x² - 12x - 4 = 0 are (7x + 2)(x -2) .

Option (b) is correct i.e none of the above .

Step-by-step explanation:

As the expression given in the question.

7x² - 12x - 4 = 0

7x² - 14x + 2x - 4 = 0

7x (x - 2)  + 2(x - 2) = 0

(7x + 2)(x -2) = 0

Thus the factors of the  7x² - 12x - 4 = 0 are (7x + 2)(x -2) .

Option (b) is correct i.e none of the above .

Answer Link

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