guys plz tell it is correct or not..
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bangtangranger:
my name is also thamanna
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2
HEY MATE.
SEE ...MY ANSWER ALSO...
AND YOU ARE CORRECT
SEE ...MY ANSWER ALSO...
AND YOU ARE CORRECT
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Answered by
4
Answer:
k = 2a²
Step-by-step explanation:
x² + 3ax + k = 0 if x = -a
x² + 3ax + k = 0
⇒ (-a)² + 3a·(-a) + k = 0
⇒ a² + 3a·(-a) + k = 0
⇒ a² + (-3a²) + k = 0
⇒ a² -3a² + k = 0
⇒ a²(1 -3) + k = 0
⇒ a²(-2) + k = 0
⇒ -2a² + k = 0
⇒ k = 2a²
Yup, Your answer is Correct!!!
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