tennetiraj86 please answer this question I will Mark you brainlist
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☆●Hello mate ,
☆●Here is your answer to the question.
1) x^2+kx-21 on "3"
3^3+3k-21=0
9+3k=-21
3k=-21-9
3k = -30
k= -30/3
k= -10.
Therefore the value of k for first question is -10.
2) x^2+kx-5 On '1'
1^2+k-5=0
1+k-5=0
1-5+k=0
-4+k=0
k=4.
Therefore the value of k for second question is 4 .
3)x^2+12k+k=0 on "-5"
(-5)^2+12 (-5)+k=0
-35+k=0
k = 35.
Therefore the value of k for third question is 35.
Hope it helps u mate.
Mark it as BRAINLIEAST please i request.
Thank you.
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