please help me with the question
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✪ Given:
- -2 is one root of the quadratic equation kx² + 2x - 8 = 0
✪ To Find:
- Value of k
✪ Solution:
∵ -2 is a root of kx² + 2x - 8 = 0
∴ It must satisfy the equation
⇒ k(-2)² + 2(-2) - 8 = 0
⇒ 4k -4 - 8 = 0
⇒ 4k = 4 + 8
⇒ 4k = 12
⇒ k =3
__________________
✪ Final Answer:
3
Answered by
2
✪ Given:
-2 is one root of the quadratic equation kx² + 2x - 8 = 0
✪ To Find:
Value of k
✪ Solution:
∵ -2 is a root of kx² + 2x - 8 = 0
∴ It must satisfy the equation
⇒ k(-2)² + 2(-2) - 8 = 0
⇒ 4k -4 - 8 = 0
⇒ 4k = 4 + 8
⇒ 4k = 12
⇒ k =3
__________________
✪ Final Answer:
3
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