# If the roots of #2x^2+4x-1=0# are #a# and #b#, find #a^2+b^2#?

##### 1 Answer

Dec 11, 2016

#### Explanation:

Sum of roots in a qudratic equation

If roots of

we have

Hence

=

=

=

=

Dec 11, 2016

Sum of roots in a qudratic equation

If roots of

we have

Hence

=

=

=

=