Denise G. answered 05/14/19
Algebra, College Algebra, Prealgebra, Precalculus, GED, ASVAB Tutor
Using synthetic division to see if x+1 is a factor
-1 | 2 -9 13 -6
-2 11 -24
2 -11 24 -30
No, because ƒ(c) = –30
Christiaan A.
asked 05/14/19No, because ƒ(c) = –4
Yes
No, because ƒ(c) = 14
No, because ƒ(c) = –30
choose the letters i submitted
Denise G. answered 05/14/19
Algebra, College Algebra, Prealgebra, Precalculus, GED, ASVAB Tutor
Using synthetic division to see if x+1 is a factor
-1 | 2 -9 13 -6
-2 11 -24
2 -11 24 -30
No, because ƒ(c) = –30
KATHERINE C. answered 05/14/19
Effective Tutor: math all levels up to AP Calc AB/BC & SAT
Hi Christiaan,
With Factor Theorem, you evaluate f(c) and (x-c) will be a factor if f(c) = 0.
Here, c = -1, you evaluate f(-1) and check if it is zero or not.
You should then be able to decide if (x+1) is a factor or not.
I will leave the actual calculation to you, but please let me know if you need further help.
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