Solving Quadratic Equations using Quadratic Formula
If
a
x
2
+
b
x
+
c
= 0, then
x
=
-b
±
b
2
-
4ac
2a
So, if
7
x
2
-
33
x
+
26
= 0, then
x
=
-
(
-33
)
±
(
-33
)
2
-
(
4
)
(
7
)
(
26
)
(
2
)
(
7
)
or,
x
=
33
±
1089
-
728
14
or,
x
=
33
±
361
14
or,
x
=
33
±
19
14
or,
x
=
52
14
or,
x
=
14
14
or,
x
=
26
7
or,
x
=
1
Algebra
Analytic Geometry
Differential Calculus
Integral Calculus
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Copyright © Dayal D. Purohit, Ph.D.(Mathematics)