How do you solve a quadratic equation?

If in ax^2+bx+c=0 form then
use quadratic formula
x= or

input and subsitute and that is the answer

Oh that's easy, all you have to do is use the quadratic equation :)
ax^2+bx+c
A would be the number squared, b would be the number with just an x and c would be the single number :) Look at the attachment and you can see how to set it all up.
Hope this helps and could you mark me as the brainliest?

If gravity is one third on mars then weight also one third on mars

Ithink it's the first one ( let me know if it right)