Question

If 2x^2+10x+6=6, which of the following could be the value of x+5?
I. 1
II. 5

III.10

The Answer is 5 but how is that the answer?

Answer 1

@mathmath333

Answer 2

\(\large\tt \begin{align} \color{black}{
2x^2+10x+6=6\hspace{.33em}\\~\\

}\end{align}\)

Answer 3

\(\large\tt \begin{align} \color{black}{
\implies 2x^2+10x=0\hspace{.33em}\\~\\

}\end{align}\)

Answer 4

Alright subtract six. Would you then solve for x?

Answer 5

yes of cos

Answer 6

Of cosine?

Answer 7

lol , i mean of course

Answer 8

Oh my bad hah. Alright so

Answer 9

\[2x(x+5)\]

Answer 10

sry this one

\(\large\tt \begin{align} \color{black}{
\implies 2x(x+5)=0\hspace{.33em}\\~\\
\implies x(x+5)=0\hspace{.33em}\\~\\
\implies x=0~~~or~~~x+5=0\hspace{.33em}\\~\\

}\end{align}\)

Answer 11

Alright thta's what I got x=0 and x=-5

Answer 12

yes but the question asks

\(\large\tt \begin{align} \color{black}{
(x+5)=?\hspace{.33em}\\~\\

}\end{align}\)

Answer 13

oh yes that's right

Answer 14

That's where I'm confused.

Answer 15

we found

\(\large\tt \begin{align} \color{black}{
x=0\hspace{.33em}\\~\\

}\end{align}\)

add \(5\) to both sides

Answer 16

so
x+5=5?

Answer 17

oh dam haha that's the answer XD

Answer 18

yes that should be it the options dont have \(0\) as the answer

Answer 19

Thank you very much!

Answer 20

yw

Answer 21

is is probably a trick question

Answer 22

*this is