Math, asked by eram90, 1 year ago

if onre zero of the polynomial 2x^2+3x+k is 1/2, find the value of k and other zero ​

Answers

Answered by brainly2617
0

Answer:

k=2/5 is the answer of this question

Answered by darknight07
1

Answer:

k= -4/2 = -2

Step-by-step explanation:

p(x) =  {2x}^{2}  + 3x + k \\  \alpha  =  \frac{1}{2}  \\ put \: in \: p(x) \\ p(x) = 0 \\ 2x {}^{2}  + 3x + k = 0 \\ 2( \frac{1}{2} ) {}^{2}  + 3( \frac{1}{2} ) + k = 0 \\ (2 \times  \frac{1}{4} ) + ( \frac{3}{2} )+ k = 0 \\  \frac{1}{2}  + (\frac{3}{2} ) + k = 0 \\  \frac{1 + 3}{2}  + k = 0 \\ k =  -  \frac{4}{2}

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