I assume you mean;
16X^2 -88X + 121 = 0
even if you did not I am not going to factor that monster, but use the quadratic formula
discriminant: (-88)^2 - 4(16)(121)
= 7744 - 7744 = 0
one real root indicated, next
X = - b (+/-) sqrt(b^2-4ac)2a
a = 16
b = -88
c = 121
X = - (-88) (+/-) sqrt[(-88)^2 - 4(16)(121)]/2(16
X = 88 (+/-) sqrt(7744 - 7744)/32
X = 88/32
X = 11/4
which is 2.75
16X^2 -88X + 121 = 0
even if you did not I am not going to factor that monster, but use the quadratic formula
discriminant: (-88)^2 - 4(16)(121)
= 7744 - 7744 = 0
one real root indicated, next
X = - b (+/-) sqrt(b^2-4ac)2a
a = 16
b = -88
c = 121
X = - (-88) (+/-) sqrt[(-88)^2 - 4(16)(121)]/2(16
X = 88 (+/-) sqrt(7744 - 7744)/32
X = 88/32
X = 11/4
which is 2.75
