Quadratic Simultaneous Equations
Question 1:
y
=
2
x
2
−
13
x
+
6
y
=
x
−
2
x
=
6.37
or
0.628
y
=
4.37
or
-1.372
Question 2:
y
=
3
x
2
−
12
x
+
3
y
=
x
+
9
x
=
4.75
or
-0.421
y
=
13.75
or
8.579
Question 3:
y
=
x
2
+
2
x
−
1
y
=
x
+
2
x
=
1.3
or
-2.3
y
=
3.3
or
-0.3
Question 4:
y
=
x
2
+
x
+
2
y
=
3
x
+
6
x
=
3.24
or
-1.24
y
=
15.72
or
2.28
Question 5:
y
=
2
x
2
+
9
x
−
8
y
=
x
+
2
x
=
1
or
-5
y
=
3
or
-3
Question 6:
y
=
3
x
2
+
15
x
−
1
y
=
x
−
7
x
=
-0.477
or
-4.19
y
=
-7.477
or
-11.19