710 Worked-Out Solutions to Exercises: Chapters 21 to 29
Figure C-5 Illustration for the solution
to Prob. 4 in Chap. 28.
x
y
No real
solutions
Table C-3. Solution to Prob. 3 in Chap. 28.
x − 3 x+ 1 2 x^2 − 3 x+ 3
−3 10 30
−2 7 17
−1 4 8
0 1 3
1 −2 2
2 −5 5
3 −8 12
4 −11 23
Table C-4. Solution to Prob. 5 in Chap. 28.
xx^2 +x+ 1 x^2 − 2 x− 2
−4 13 22
−3 7 13
−2 3 6
−1 1 1
0 1 − 2
1 3 − 3
2 7 − 2
3 13 1
4 21 6