Answer:
x=-3,x=9
Step-by-step explanation:
x^2-6x-20-7=0
x^2-6x-27=0
x^2-(9-3)x-27=0
x^2-9x+3x-27=0
x(x-9)+3(x-9)=0
(x+3)(x-9)=0
x=-3,x=9
If then
If then first 300 minutes are free and each minute of next (x-300) minutes costs $0.39, therefore the answer is B :)
Answer:
i will take company (a) because they are giving in less rate
Answer:

Step-by-step explanation:
If a polynomial intersects the x-axis at (2,0) and (-2,0)
Then the zeroes are at x=2 and x=-2
(Outside of the question)
To find factors using the zeroes, we must have one side of the equation equal to zero.
x=2
x-2=0
factor (x-2)
x=-2
x+2=0
factor (x+2)