How many chinese girls can i fit in a 50cm by 50cm by 60cm box?

How large are the chinese girls?

Depends on how small they are

There are many ways in which we can find for the zeros of the problem. We can use the quadratic formula, completing the square, using a graphing calculator, etc.

For this problem, I'll be completing the square.

x² - 6x = -22

Since the constant has been moved to the right side already, we can move on to the next step which is adding (b/2)² to both sides of the equation.

x² - 6x + (-6/2)² = -22 + (-6/2)²

x² - 6x + 9 = -22 + 9

Factor the left side of the equation into a perfect square and simplify the right side.

(x - 3)(x - 3) = -13

Take the square of both sides.

x - 3 = ± √-13

Take out the negative from the square root as the letter "i"

x - 3 = ± i√13

Add 3 to both sides of the equation to let x be by itself.

x = 3 ± i√13

So your two roots will be:

x = 3 + i√13 and x = 3 - i√13

Solution: C. 3 - i√13