what is half of -6 squared: 6/2=3, squared , 9
x^2-6x+9 -7=9
(x-3)^2 =16
take the square root of each side.
x-3= +-4
x=7, or -1
x^2-6x-7=0 Completing the square
need help
1 answer
need help
1 answer
1 answer
1 answer
0 answers
0 answers