if x= -1/2 is a zero of the polynomial f(x) = 2x²-3x+7a find the value of a
Answers
Answered by
1
Answer:
-2/7 is the answer
Step-by-step explanation:
2*-1/2*-1/2-3*-1/2+7a=0
1/2+3/2+7a=0
2+7a=0
7a=-2
a=-2/7
Answered by
22
Solution -
We have a polynomial f(x) = 2x² - 3x + 7a
It is given that -1/2 is a zero of the given polynomial.
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Since, it is the zero of polynomial.
It means x = -1/2 is the perfect solution of the polynomial.
Now, we put
- x = -1/2
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⠀⠀...[1]
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Now, it is given that x = -1/2 is a zero of the given polynomial. Therefore,
- Put f(x) = 0
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