tmybby Group Title Please help?????! Is Solve the equation. x2 + 10x + 23 = 0 & Solve the quadratic equation by completing the square. x2 + 10x + 23 = 0 going to be the same answer?? one year ago one year ago

1. satellite73

yes, of course it will be the same

2. satellite73

$x^2+10x=-23$ $(x+5)^2=-23+5^2=-23+25=2$ $x+5=\pm\sqrt{2}$ $x=-5\pm\sqrt{2}$ is the completing the square method

3. tmybby

So they both will equal x=-5+-square root 2? :) Cus they are both on my assignment, but asking to solve it differently...

4. satellite73

you can solve it using the quadratic formula if you like you will get the same answer

5. tmybby

Oh, okay! Thank you so much! :)

6. satellite73

yw