9x×z+3kx+4=0 what's the value of. k?
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Answered by
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b^2-4ac=0 (Since the roots are supposed to be equal)
=>{3k}^2-4(9)(4)=0
=>9k^2-144=0
=>9k^2=144
=>k^2=144/9=16
k=4 or -4.
Answered by
2
Answer:
b^2-4ac=0 (Since the roots are supposed to be equal)
=>{3k}^2-4(9)(4)=0
=>9k^2-144=0
=>9k^2=144
=>k^2=144/9=16
k=4 or -4.
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