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soldier1979 [14.2K]
3 years ago
14

Which model shows the correct factorization of x2 + 2x – 8?

Mathematics
2 answers:
zysi [14]3 years ago
5 0

Answer:

Step-by-step explanation:

Basically D

expeople1 [14]3 years ago
4 0
To factor x^2 + 2x - 8 follow these steps


1) Write to factors, with x as the first term, this way:

(x      )(x      )


2) The sign to the right of the x in the first factor is the same sign of the coeficient of x in the polynomial.

That is +.


The sign to the right of the x of the second factor is the product of the sign of the coefficent of x (this is +) and the sign of the independent term (this is - ).

So that is (+).(-) + -.

Now the two factors have this form:

(x +  ) (x  -  )


3) Now find two numbers whose product is - 8 and whose difference is +2


Those numbers are + 4 and -2.


Then the two factors are:

(x + 4) (x -  2).


So the answer if that the correct factorization is (x + 4) (x - 2)
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