Question

7. if ½ is a root of the equation x2 + kx – 5/4, then the value of k is:​

Answer 1

Answer:

1/2*2+k*1/2-5/4=0

1+k/2-5/4=0

2+2k-5/4=0

-3+2k/4=0

-3+2k=0*4

k=0+3/2

k=3/2

k=1.5 answer

Step-by-step explanation:

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