Math, asked by Anonymous, 4 months ago

solve this with complete solution and I will mark your brainlist​

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Answered by lalita7832
1

Answer:

k=1

Step-by-step explanation:

⇒  3x2+px−8=0

Substitute x=2, since 2 is root of equation

⇒  3(2)2+p(2)−8=0

⇒  12+2p−8=0

⇒  4+2p=0

∴  p=−2

⇒  4x2−2px+k=0

⇒  4x2−2(−2)x+k=0           [ Since, p=−2 ]

⇒  4x2+4x+k=0

⇒  Here, a=4,b=4,c=k

⇒  It is given that roots are equal.

∴  b2−4ac=0

⇒  (4)2−4(4)(k)=0

⇒  16−16k=0

⇒  16k=16

∴  k=1


Anonymous: are you sure
lalita7832: yes
Answered by XxItzAnvayaXx
1

Answer:

Here is your answer.

Step-by-step explanation:

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