Question

Solve the following quadratic function by utilizing the square root method. f(x) = 1 - x2 x = + [?]

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Answer 1

Let f(x)=0

• 1-x²=0
• -x²=-1
• x²=1
• x=±1

Answer 2

Answer: 1

Explanation:

If x = 0

then, f(x) = 1 - 0

f(x) = 1

x = ±1