If one zero of the quadratic polynomial \( f(x)=4 x^{2}-8 k x-9 \) ... VIDEO
If one zero of the quadratic polynomial \( f(x)=4 x^{2}-8 k x-9 \) is negative of the other, find the value of \( k \).https://bit.ly/YTAI_PWAP https://www.pw.live
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