Question

Help please

Answer 1

Yes, what do you need help with ?

Answer 2

You can see that Stefon is adding 14x to each side... but that's purposeless.

The other 2 have the correct answer, they just use different methods.

Answer 3

I have a better method though...

\(\LARGE\color{blue}{ \bf 2x^{2}-14x+20=0 }\)

\(\LARGE\color{blue}{ \bf 2(x^{2}-7x+10)=0 }\)

\(\LARGE\color{blue}{ \bf x^{2}-7x+10=0 }\)

\(\LARGE\color{blue}{ \bf (x-5)(x-2)=0 }\)

\(\LARGE\color{blue}{ \bf x-5=0~~~~~~~~~~or~~~~~~~~x-2=0 }\)

\(\LARGE\color{blue}{ \bf x=5~~~~~~~~~~~~~~~~~~~~~~~~~~~~x=2 }\)

Answer 4

Also, saying x=2 and x=5 is correct. Saying that the answers are (2,0) and (5,0) is incorrect.