Question

4.
4. The zeroes of the polynomial x2 - 2x - 12 are​

Answer 1

Answer:

x = +/_ 6

Step-by-step explanation:

attached a Photo. using complete the square method

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Answer 2

Correct Question :

The zeroes of the polynomial x2 - √2x - 12 are?

Step-by-step explanation:

The given Equation is f(x) = x² - √2x - 12

• Now, we have given equation x²- √2x - 12. So, we have to Calculate the value of x such that, where f(x) = 0 :]

➳ x² - √2x - 12 = 0

➳ x² - 3√2x + 2√2x - 12 = 0

➳ x(x - 3√2) + 2√2(x - 3√2) = 0

➳ (x - 3√2) (x + 2√2) = 0

• when x is x - 3√2 the value of x will be 3√2

• when x is x + 2√2 the value of x will be -2√2.

Therefore, 3√2 and -2√2 are the zeroes of the given polynomial.

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