Step 1:
\The quardratic equation is
.
Write the equation in the form of
.
Rewrite the quadratic equation.
\
.
Here
,
and
.
Quadratic formula :
\The solution of the quadratic equation in the form
is
.
Substitute
,
and
in the quadratic formula.
(Quadratic formula)
(Substitute
,
and
)
(Multiply)
(Simplify)
(Substitute
)
(Simplify)
Therefore the solutions of the quadratic equation are
.
Solution:
\The solutions of the quadratic equation are
.
Option
is right choice.
Quetion 2:
\Step 1:
\The quardratic equation is
.
3
Write the equation in the form of
.
Here
,
and
.
Quadratic formula :
\The solution of the quadratic equation in the form
is
.
Substitute
,
and
in the quadratic formula.
(Quadratic formula)
(Substitute
,
and
)
(Multiply)
(Simplify)
(Substitute
)
(Simplify)
(
)
(Take out common factors)
(Cancel common terms)
Therefore the solutions of the quadratic equation are
.
Solution:
\The solutions of the quadratic equation are
.
Option
is right choice.