SOLUTION: Solve the polynomial inequality. Round all endpoints to 1 decimal place. You may answer algebraically or graphically. 0.015x4 - 0.06x3 - 0.78x2 + 1.68x > - 5.76

Algebra ->  Customizable Word Problem Solvers  -> Geometry -> SOLUTION: Solve the polynomial inequality. Round all endpoints to 1 decimal place. You may answer algebraically or graphically. 0.015x4 - 0.06x3 - 0.78x2 + 1.68x > - 5.76      Log On

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Question 1156237: Solve the polynomial inequality. Round all endpoints to 1 decimal place. You may answer algebraically or graphically.
0.015x4 - 0.06x3 - 0.78x2 + 1.68x > - 5.76
Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!

0.015x%5E4+-+0.06x%5E3+-+0.78x%5E2+%2B+1.68x+%3E+-+5.76
0.015x%5E4+-+0.06x%5E3+-+0.78x%5E2+%2B+1.68x%2B5.76+%3E0.......divide by 0.015
x%5E4+-+4x%5E3+-+52x%5E2+%2B+112x%2B384+%3E0
x%5E4+-+4x%5E3+-+52x%5E2+%2B+112x%2B384+%3E0
x%5E4+-+4x%5E3+-+52x%5E2+-96x%2B+208x%2B384+%3E0
%28x%5E4+-+4x%5E3%29+-+%2852x%5E2-208x%29+-%2896x-384+%29%3E0
x%5E3%28x+-+4%29+-+52x%28x-4%29+-96%28x-4+%29%3E0
%28x+-+4%29%28x%5E3+-+52+x+-+96%29%3E0
%28x+-+4%29%28x%5E3+%2B8x%5E2%2B12x-8x%5E2-+64+x+-+96%29%3E0
%28x+-+4%29%28%28x%5E3-8x%5E2%29+%2B%288x%5E2-+64+x%29%2B%2812x+-+96%29%29%3E0
%28x+-+4%29%28x%5E2%28x-8%29+%2B8x%28x-+8%29%2B12%28x+-+8%29%29%3E0
%28x+-+4%29%28x+-+8%29%28x%5E2+%2B+8+x+%2B+12%29%3E0
%28x+-+4%29%28x+-+8%29%28x%5E2+%2B+2+x%2B6x+%2B+12%29%3E0
%28x+-+4%29%28x+-+8%29%28%28x%5E2+%2B+2+x%29%2B%286x+%2B+12%29%29%3E0
%28x+-+4%29%28x+-+8%29%28x%28x+%2B+2+%29%2B6%28x+%2B+2%29%29%3E0
%28x+-+8%29+%28x+-+4%29+%28x+%2B+2%29+%28x+%2B+6%29%3E0
solutions:
x%3E8
-2%3Cx%3C4
x%3C-6
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