What are the zeros of f (x) = x2 − x − 2?
Zeros are the roots of a quadratic equation.
Answer: The zeros of the function f (x) = x2 − x − 2 are x = 2 and x = - 1.
Let's find the zeros of the polynomial.
Explanation:
To find the zeros of the quadratic equation, we will put the value of the function equal to zero.
⇒ x2 − x − 2 = 0
We will factorize the quadratic equation by splitting the middle term.
⇒ x2 - 2x + x - 2 = 0
⇒ x (x - 2) + 1 (x - 2) = 0
⇒ (x - 2) (x + 1) = 0
Put both the values equal to zero.
⇒ (x - 2) = 0 and (x + 1) = 0
⇒ x = 2 and x = - 1
Hence, we have two values of x that make the value of the polynomial equal to zero.
You can try Cuemath's Quadratic Equation Calculator to find the zeros of a quadratic polynomial.
Thus, the zeros of the function f (x) = x2 − x − 2 are x = 2 and x = - 1.
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