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If the product of zeros of the polynomial f(x) = ax3  + 4x2 - 2x - 6 is 2, then the value of 'a' =
  • a)
    4
  • b)
    3
  • c)
    -2
  • d)
    -1
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
If the product of zeros of the polynomial f(x) = ax3 + 4x2 - 2x - 6 is...
Given:
f(x) = ax3  + 4x2 - 2x -­ 6
Product of zeros = 2
Concept used: 
Product of zeros = -(d/a)
Calculation:
In the given polynomial,
d = - 6 & a = a
⇒ - (d/a) = 2
⇒ -(-6)/a = 2
⇒ a = 6/2
⇒ a = 3
∴ If the product of zeros of the polynomial f(x) = ax3  + 4x2 - 2x -­ 6 is 2, then the value of 'a' = 3.
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Most Upvoted Answer
If the product of zeros of the polynomial f(x) = ax3 + 4x2 - 2x - 6 is...
Given:
f(x) = ax3  + 4x2 - 2x -­ 6
Product of zeros = 2
Concept used: 
Product of zeros = -(d/a)
Calculation:
In the given polynomial,
d = - 6 & a = a
⇒ - (d/a) = 2
⇒ -(-6)/a = 2
⇒ a = 6/2
⇒ a = 3
∴ If the product of zeros of the polynomial f(x) = ax3  + 4x2 - 2x -­ 6 is 2, then the value of 'a' = 3.
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Community Answer
If the product of zeros of the polynomial f(x) = ax3 + 4x2 - 2x - 6 is...
Given:
f(x) = ax3  + 4x2 - 2x -­ 6
Product of zeros = 2
Concept used: 
Product of zeros = -(d/a)
Calculation:
In the given polynomial,
d = - 6 & a = a
⇒ - (d/a) = 2
⇒ -(-6)/a = 2
⇒ a = 6/2
⇒ a = 3
∴ If the product of zeros of the polynomial f(x) = ax3  + 4x2 - 2x -­ 6 is 2, then the value of 'a' = 3.
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If the product of zeros of the polynomial f(x) = ax3 + 4x2 - 2x - 6 is 2, then the value of a =a)4b)3c)-2d)-1Correct answer is option 'B'. Can you explain this answer?
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