SOLUTION: I have been struggling to figure out this math problem and I was wondering if someone could help me? Please and Thank You!! I would deeply appreciate it!! Solving Polynomial Ine

Question 167307This question is from textbook Algebra and Trigonometry Structure and Method book 2
: I have been struggling to figure out this math problem and I was wondering if someone could help me? Please and Thank You!! I would deeply appreciate it!!
Solving Polynomial Inequalitites
Find and graph the solution set of each inequality.
x^4-18<7x^2 This question is from textbook Algebra and Trigonometry Structure and Method book 2

Answer by checkley77(12844) (Show Source): You can put this solution on YOUR website!
x^4-18<7x^2
x^4-7x^2-18<0
(x^2-9)(x^2+2)=0
(x+3)(x-3)(x^2+2)=0
(graph 300x200 pixels, x from -6 to 5, y from -10 to 10, of TWO functions x +3 and x -3).
(graph 300x200 pixels, x from -6 to 5, y from -10 to 10, x^2 +2).
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