Question

Solve 0+x^2-10x+30 by completing the square

Answer 1

Answer:

See answer below

Step-by-step explanation:

x² - 10x + 30 = 0

x² - 10x = -30

x² - 10x + 25 = -30 +25     1/2 of the x term and square that number and add to

                                          both side.

x² -10x + 25 = -5

(x - 5)(x - 5) = -5

$\sqrt{(x-5)(x-5)^2}$ = $\sqrt{-5}$    

If you are in Algebra II , then the answer is not a real answer it will be

(x - 5)² = ±5i