Question

FAN AND MEDAL!! Please help
Solve x2 + 9x + 20 = 0.

x = 2, x = 10
x = -2, x = -10
x = -5, x = -4
x = 5, x = 4

Answer 1

hint: \(\large \begin{array}{ccclllll}
x^2 &+ 9x &+ 20 &= 0\\
&\uparrow &\uparrow \\
&5+4&5\cdot 4
\end{array}\)

Answer 2

So would it be D? @jdoe0001

Answer 3

Actually, it would be C. Because using the information @jdoe0001 gave, you'd do this:
\(\large (x+5)(x+4)=0\)
Then split into two equations and solve for x
\(\large x+5 = 0\) and \(\large x+4=0\)

Answer 4

Which would result in \(\large x=-5,-4\)

Answer 5

ohhh ok I see what I did wrong thanks @StudyGurl14 ...

Answer 6

You're welcome. :)