Quadratic Simultaneous Equations
Question 1:
y
=
x
2
+
6
x
−
1
y
=
x
+
5
x
=
1
or
-6
y
=
6
or
-1
Question 2:
y
=
3
x
2
−
12
x
−
1
y
=
x
−
3
x
=
4.17
or
0.16
y
=
1.17
or
-2.84
Question 3:
y
=
2
x
2
+
12
x
+
2
y
=
2
x
+
10
x
=
0.702
or
-5.7
y
=
11.404
or
-1.4
Question 4:
y
=
x
2
−
14
x
−
1
y
=
x
−
4
x
=
14.8
or
0.203
y
=
10.8
or
-3.797
Question 5:
y
=
2
x
2
+
15
x
−
4
y
=
x
−
5
x
=
-0.0722
or
-6.93
y
=
-5.0722
or
-11.93
Question 6:
y
=
2
x
2
+
11
x
−
4
y
=
x
+
3
x
=
0.622
or
-5.62
y
=
3.622
or
-2.62