- #1
Sumedh
- 62
- 0
Homework Statement
Solve the inequation [tex](x^2+3x+1)(x^2+3x-3)\ge 5[/tex]
The Attempt at a Solution
on opening the brackets i got
[tex]x^2(x^2+3x-3)+3x(x^2+3x-3)+1(x^2+3x-3)\ge 5[/tex]
[tex]x^4+3x^3-3x^2+3x^3+9x^2-9x+x^2+3x-3-5\ge 0[/tex]
[tex]x^4+6x^3+7x^2-6x-8\ge 0[/tex]
am i right??
after that what should i do??