0.98 is already rounded
it may also be asking for 0.980, which is equal but shows the thousandth place
49/9 because if you simplify it, it would be 7/3 which is equal to the original ratio.
<span>x^2+4x-1/(x+2)^2=0
x^2 + 4x - 1 = 0
</span>

;
where a = 1, b = 4 and c = -1