-9
−94
94
9
Correct answer is D
4x2 - 12x + k;
a = 4, b = -12, c = k.
For perfect square b2 = 4ac
(-12)2 = 4 * 4 * k;
144 = 16k
k = 144\16
k = 9
If the determinant of the matrix (2x35)=13, find...
Determine the coefficient of x3 in the binomial expansion of ( 1 + 12x) ...
If log10y+3log10x≥log10x, express y in terms of x....
If a fair coin is tossed four times, what is the probability of obtaining at least one head? ...
Two functions f and g are defined by f:x→3x−1 and g:x→2x3, evaluate \(fg(-2...