Question

PLEASE HELP ME

Solve y = x^2 + 5x + 6 by completing the square?

Answer 1

x^2 + 5x = -6
(x + 2.5)^2 - 2.5^2 = -6
(x + 2.5)^2 = -6 + 6.25 = 0.25

can you continue?

Answer 2

you can also solve this by factoring

Answer 3

@cwrw238 I see what you did there but now im a little lost. how do you solve it by factoring?

Answer 4

@TheSmartOne can you explain it to me?

Answer 5

\[(x+2.5)^2=.25\]
Square root both sides
\[\sqrt{(x+2.5)^2}=\sqrt{.25}\]

Answer 6

\[(x+2.5)=\pm.5\]
Subtract 2.5 on both sides...
\[x=-2.5\pm.5\]

Answer 7

@TheSmartOne thanks!

Answer 8

No problem...