sum of zeroes of the polynomial2xsq.-4x+5 is 4. prove
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a+b=-b/a
therefore
a+b=-(-4)/2=2
human2832003:
hm
so
by
bye
but why
When someone talks about the roots of an eqn ,it simply means the points on which this function is is giving 0 . So ,1 easy proof can be just draw the graph . Wherever it will cut x axis (at 2 diff points) just add those integers (in this case). And you'll get the sum of roots which is equal to -b/a. Here its 4.
thankx dear
so much
Wlcm.
its ok
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