Answer:
D. 2x^2-7x.
Step-by-step explanation:
Lets write it out to make it easy to work with.
-x(-2x+7)
Multiply the -x out
2x^2-7x.
The answer is D
Step-by-step explanation:
i need the equation from the first question
Long way: try to divide. But we are lazy, so it's no go. Option number one: all rational numbers that could give you a division can be taken from "THE List": you build it by taking the constant term, that is 6, and all its divisors (1,2,3,6), the highest term coefficent, 3 in this case, its divisors (1,3) , and you divide every one in the first list by the second, and adding a in front of them. Our list is: .
Since -3 is part of THE List, it might be a divisor - that system would garantee you that, for example, x-4 would NOT be a factor.
Cheap way. if (x+3) is a factor of g(x), then g(-3) = 0. Let's replace.
Since we didn't get zero, is not a factor of g(x)
F(x) = 3x - 2
g(x) = x^2 + 1
(f+g)(x) = f(x) + g(x)
(f+g)(x) = 3x - 2 + x^2 + 1
(f+g)(x) = x^2 + 3x -1
Answer D