SOLUTION: 2. (2x² + 3x – 1) – (5x² - 5x – 5)
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Question 321241: 2. (2x² + 3x – 1) – (5x² - 5x – 5)
Answer by checkley77(12844) (Show Source): You can put this solution on YOUR website!
2. (2x² + 3x – 1) – (5x² - 5x – 5)
-3x^2+8x+4
x=(-8+-sqrt[8^2-4*-3*4])/2*-3
x=(-8+-sqrt[64+48])/-6
x=(-8+-sqrt112)/-6
x=(-8+-10.583)/-6
x=-8+10.583)/-6
x=2.583/-6
x=-.43 ans.
x=(-8-10.583)/-6
x=-18.583/-6
x=3.1 ans.
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