if one zero of the polynomial 4 x^2- 8 Kx - 9 is negative of the Other find the value of k
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if one zero of the polynomial 4 x^2- 8 Kx - 9 is negative of the Other find the value of k
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Answer:
k=0
Step-by-step explanation:
check the file attached
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The question says one root is negative of others.
So, the sum of the roots must be zero.
For any quadratic equation
Like : ax2 + bx + c = 0
The sum of roots is given by -b/a
So, in this equation : 4x2 - 8ka - 9
b = -8k & a = 4
So, 0 = -b/ a
-(-8k) /4 = 0
2k = 0
k = 0
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