Which is the set of roots of the equation? 0 = x2 + 10x - 24 (Points : 4)
{12, 2}
{-12, -2}
{-12, 2}
{12, -2}

Question

Which is the set of roots of the equation? 0 = x2 + 10x - 24 (Points : 4)  
       {12, 2}
        {-12, -2}
        {-12, 2}
        {12, -2}

kaley246 · Answer

@SolomonZelman

solomonzelman · Answer

$\large\color{green}{ \displaystyle 24=12\times(-2) }$
$\large\color{blue}{ \displaystyle 10=(-2)+(12) }$

kaley246 · Answer

so my answer is -2,12

solomonzelman · Answer

when you factor you get:
$\large\color{black}{ \displaystyle x^2+10x-24~~~\Rightarrow~~~(x-\color{blue}{\bf 2})(x+\color{blue}{\bf 12}) }$

solomonzelman · Answer

((   either  `(x-2)=0`, or `(x+12)=0`   ))

solomonzelman · Answer

you are a little off.

kaley246 · Answer

whats the answer then

solomonzelman · Answer

Do you understand how I factored the equation ?

kaley246 · Answer

The graph represents the height of a football t seconds after it was punted. How many seconds did it take the football to land?

(Points : 4)  
       2
        5
        3
        4

solomonzelman · Answer

we haven't got through the previous question.... have we ?

solomonzelman · Answer

and for this question there is an Info lacking.