Quadratic Simultaneous Equations
Question 1:
y
=
x
2
−
3
x
−
5
y
=
2
x
+
8
x
=
6.89
or
-1.89
y
=
21.78
or
4.22
Question 2:
y
=
2
x
2
−
14
x
+
10
y
=
x
+
7
x
=
7.29
or
0.206
y
=
14.29
or
7.206
Question 3:
y
=
2
x
2
+
8
x
−
6
y
=
x
−
1
x
=
0.608
or
-4.11
y
=
-0.392
or
-5.11
Question 4:
y
=
x
2
+
13
x
−
5
y
=
x
−
7
x
=
-0.169
or
-11.8
y
=
-7.169
or
-18.8
Question 5:
y
=
3
x
2
−
13
x
−
5
y
=
3
x
+
3
x
=
5.79
or
-0.46
y
=
20.37
or
1.62
Question 6:
y
=
2
x
2
−
7
x
+
3
y
=
3
x
+
4
x
=
5.1
or
-0.0981
y
=
19.3
or
3.7057