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If the polynomial is of the form x^2+bx+c (ie., no factor in front of the x^2!!) then you can look for numbers that add up to b and multiply to c.
So in this case: what two numbers, when added, give -2 and when multiplied, give 1? A little trial and error gives you -1 and -1.
So the factorization is (x-1)(x-1). This is zero for x=1. There is only one zero.
The domain of a relation, otherwise known as a function, is the input, or x values, of the relation
A) say one week 1*4=4*5=20 plug in any number it works<span />
If x - 1 is a factor then f(1) = 0 ( By the Factor Theorem)
f(1) = 1^1 + 1 - 1 = 1 so its not C
If you check the other 3 you'll find that none of them are factors.
Im assuming that x 2 is x squared, right?
