Which three steps are correct when solving this quadratic equation by completing the square? X^2-10x=39

Question

asked Jan 27, 2022 95.3k views

1 Answer

Netero · Answer 1 · 2022-02-01T08:30:11+0000

Explanation:

Any answer that involes,

Step 1: Complete the Square

${x}^(2) - 10x = 39$

$( ( - 10)/(2) ) {}^(2) = 25$

${x}^(2) - 10x + 25 = 64$

Step 2: Turn the left side into a binomial

$(x - 5) {}^(2) = 64$

Step 3: Solve for x.

x - 5 = + - 8

x - 5 = 8

x = 13

OR

x - 5 = - 8

x = - 3

X=-3 or X=13