Quadratic Simultaneous Equations
Question 1:
y
=
x
2
−
13
x
−
10
y
=
2
x
−
7
x
=
15.2
or
-0.197
y
=
23.4
or
-7.394
Question 2:
y
=
2
x
2
+
15
x
+
10
y
=
2
x
−
7
x
=
-1.81
or
-4.69
y
=
-10.62
or
-16.38
Question 3:
y
=
3
x
2
−
13
x
−
9
y
=
x
+
7
x
=
5.62
or
-0.95
y
=
12.62
or
6.05
Question 4:
y
=
2
x
2
−
13
x
−
2
y
=
x
+
3
x
=
7.34
or
-0.341
y
=
10.34
or
2.659
Question 5:
y
=
3
x
2
−
x
−
8
y
=
2
x
−
6
x
=
1.46
or
-0.457
y
=
-3.08
or
-6.914
Question 6:
y
=
x
2
+
7
x
+
5
y
=
3
x
+
7
x
=
0.449
or
-4.45
y
=
8.347
or
-6.35