Question

solve the quadratic equation by completing the square:
x^2-3x=28

Answer 1

First put everything on one side of the equation
\[x ^{2}-3x-28\]

Then find multiples of the last number =28
2,14
4,7
28,1


Now you plug till u find the correct one with correct sign

\[(x-7)(x+4)\]

Answer 2

\[x=7, x=-4\]

Answer 3

ok thanks

Answer 4

you're welcome