if the sum of zeroes of a quadratic polynomial f(x)=5xsquare -(3+k)x+7 is 0,find the value of k
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Answered by
2
let zeroes are A and B,
sum of roots = -b/a compared with ax^2 +bx +c
as -b/a =0
(3+k)/5 =0
k = -3. hope you helped. for any problem comment me.
sum of roots = -b/a compared with ax^2 +bx +c
as -b/a =0
(3+k)/5 =0
k = -3. hope you helped. for any problem comment me.
Answered by
0
a+b=0
3+k/5+7/5=0
3+k=7
k=4
3+k/5+7/5=0
3+k=7
k=4
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