The sum of the two numbers is and product is
.
Let and
be a number.
Hence the sum of the two numbers is such that the equation is
.
The product of the two numbers is such that the equation is
.
(Substitute
)
(Distributive property)
(Add
on each side)
(Apply additive inverse property:
)
Consider the related function .
The standard form of quadratic function , where
.
and
.
Find the axis symmetry.
\The equation of the axis symmetry is .
(Substitute the values
and
)
(Simplify)
The axis symmetry is .
Make a table using values near
.
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Graph:
\Plot the points obtained in the table.
\Graph the function :
Observe the graph:
\The graph touches the -axis at
and
.
Therefore, the solutions of the equation are and
.
The solutions of the equation are and
.