Ask a New Question
Menu

(x+13)(x-18)(x+4)>0

I cannot figure this one out. Please help.

1 answer

This is a cubic polynomial with zeroes at x=-13, x=-4 and x=18.
The coefficient of the x³ term being positive, f(x)<0 when x-> -∞ and f(x)>0 when x->∞.
Thus f(x) >0 when x is between the first two roots and greater than the third root, namely on the interval:
(-13,-4)∪(18,∞)
Similar Questions
  1. Figure 1: chairFigure 2: tree Figure 3: nut Figure 4: House which scale drawing is a dilation that increases the size of the
    1. answers icon 1 answer
  2. Which figure can you describe as similar to Figure A?(1 point) Responses Figure E Figure E Figure B Figure B Figure D Figure D
    1. answers icon 1 answer
  3. Which figure would result from rotating and dilating Figure 1?(1 point) Responses Figure 5 Figure 5 Figure 3 Figure 3 Figure 4
    1. answers icon 1 answer
  4. Which figure would result from rotating and dilating Figure 1?(1 point) Responses Figure 2 Figure 2 Figure 3 Figure 3 Figure 5
    1. answers icon 1 answer
more similar questions