x cube + x square - 10 X + 8 / X - 1
Answers
Answered by
4
Answer:
f(x)=(x+1)(x+2)(x−4)
Step-by-step explanation:
f(x) = x^3 - x^2 - 10x - 8.
We find out that
f(-1) = -1 -1 + 10 - 8 = 0,
then, one factor is (x + 1).
After division -->
f(x)=(x+1)(x2−2x−8)
The trinomial in parentheses can be factored.
Find 2 numbers knowing sum (-2) and product (-8).
They are (2) and (-4)
(x2−2x−8)=(x+2)(x−4)
f(x)=(x+1)(x+2)(x−4)
Answered by
13
Answer:
(x-2) (3x+4)
Step-by-step explanation:
3x 2−10x+8
−6×−4=24...the product of the coefficient of the first and the last term
−6+−4=−10..the split for the middle term
Now, splitting the middle term we get
=3x 2 −6x−4x+8
=3x(x−2)−4(x−2)
=(x−2)(3x+4)
hope help uh ❤
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