Write the expression x^2+8x-5 and x^2-4x-2 in the form (x+a)^2 +b

The ratio of rock songs to dance songs on jonathan’s mp3 player is 5: 6. the total number of rock and dance songs jonathan has is between 101 120. how many rock songs does he have?

How to use order of operation in 20 divide by 4 multiply 5 = 1

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?