Quadratic Simultaneous Equations
Question 1:
y
=
2
x
2
−
9
x
−
2
y
=
3
x
−
9
x
=
5.35
or
0.655
y
=
7.05
or
-7.035
Question 2:
y
=
3
x
2
−
3
x
−
10
y
=
2
x
−
9
x
=
1.85
or
-0.18
y
=
-5.3
or
-9.36
Question 3:
y
=
x
2
−
2
x
+
2
y
=
x
+
7
x
=
4.19
or
-1.19
y
=
11.19
or
5.81
Question 4:
y
=
2
x
2
−
8
x
+
4
y
=
2
x
−
6
x
=
3.62
or
1.38
y
=
1.24
or
-3.24
Question 5:
y
=
x
2
+
15
x
−
6
y
=
2
x
−
2
x
=
0.301
or
-13.3
y
=
-1.398
or
-28.6
Question 6:
y
=
3
x
2
+
13
x
−
6
y
=
3
x
+
3
x
=
0.737
or
-4.07
y
=
5.211
or
-9.21