Question

Find solution of quadratic equation: 5x^2=10x

Answer 1

divdide both sides by 5
5x^2=10x
x^2=2x
divide both sides by x and you're done

Answer 2

\(\Large \color{MidnightBlue}{\Rightarrow 5x^2 - 10x = 0 }\)

\(\Large \color{MidnightBlue}{\Rightarrow 5x(x - 2) = 0 }\)

\(\Large \color{MidnightBlue}{\Rightarrow x - 2 = 0 }\)

\(\Large \color{MidnightBlue}{\Rightarrow x = 2 }\)

Answer 3

The answer key tells me the answer is x=0, 2...where is the 0 coming from?

Answer 4

parthkohli is wrong

5x²-10x=0
5x(x-2)=0
x=2
5x=0
x=0

x=2 , x=0

Answer 5

Thanks :D

Answer 6

anytime, happy to help :D

Answer 7

if you follow sams method and divide by x you eliminate an answer
you eliminate the possibility of x=0
don't follow that method you will only get half an answer