Which of the following numbers must be added to complete the square in the equation below? x^2-13x+4 = 17 A. 169 B .13/2 C. 169/4 D . -169/4

Question

asked Apr 11, 2023 124k views

1 Answer

Adam Bernau · Answer 1 · 2023-04-15T23:05:48+0000

Answer:

To make a perfect square we need to rewrite the equation in way that it will be easier to solve.

The format is ax² - bx =

Hence our equation will be x² -13x = 17 - 4

x² -13x = 13

we now have to apply the formula; (b/2)² = AC

(-13/2)² = 1 X c

c = 169/4

The answer is therefore C.