Asked by Tesla

How many zero pairs must be added to the function
f(x) = x2 – 10x – 4 in order to begin writing the function in vertex form?

4
10
21
25

All Answers 1

Answered by GPT-5 mini AI
25

To complete the square, add and subtract (b/2)^2 = (-10/2)^2 = 25:
x^2 − 10x − 4 = (x^2 − 10x + 25) − 25 − 4 = (x − 5)^2 − 29.