Question

factor -x^2+2x+8 please help

Answer 1

3x+10

Answer 2

-x^2 is same as -x(-x)
negative times a negative equals a positive

Answer 3

\(\large -x^2+2x+8\implies
\begin{array}{cccllll}
-(x^2&-2x&-8)\\
&\uparrow &\uparrow \\
&2-4&2\cdot -4
\end{array} \)

Answer 4

thank you so there's no other parenthesis

Answer 5

?

Answer 6

-x^2+2x+8 = -x^2 + 4x - 2x + 8
Factor the first two terms and the last two terms and simplify.