Find all real and non-real roots of the function ƒ(x) = x2 + 49. Question 1 options: A) x = –7, 7 B) x = –7i, 7i C) x = –49i, 49i D) x = i + 7, i – 7

A

Step-by-step explanation:

f(x) = x²-49 , rewrite it as a difference of two perfect squares

f(x) = x² -7², use the formula a²-b² = (a+b)(a-b)

(x-7)(x+7) = 0, consider f(x) =0 to find the roots

x-7=0, gives x = 7

x+7 =0 gives x = -7

the roots are 7 and -7

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step-by-step explanation: