If the equation 25x²-kx+9=0 has equal roots then find the value of x.
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hey mate !!!
see the attachment for your answer
see the attachment for your answer
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8
hi dear !!!
since Roots are equal
therefore
D = 0
b²- 4ac = 0
b = -k
a= 25
c = 9
on putting in b² -4ac
we get
(k )² -4× 25× 9 = 0
k = √ 900
k= ± 30
hence value of k is ±30
hope it help you dear !!!
thanks !!
since Roots are equal
therefore
D = 0
b²- 4ac = 0
b = -k
a= 25
c = 9
on putting in b² -4ac
we get
(k )² -4× 25× 9 = 0
k = √ 900
k= ± 30
hence value of k is ±30
hope it help you dear !!!
thanks !!
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