HELP ME. A triangle has side lengths of (2t+2)(2t+2) centimeters, (6t-7)(6t−7) centimeters, and (u-2)(u−2) centimeters. Which expression represents the perimeter, in centimeters, of the triangle?

-u-5+8t−u−5+8t
-7+u+8t−7+u+8t
-u+3t−u+3t
-u+4t-1−u+4t−1

For [tex]f(x) = 4x + 1[/tex] and (x) = [tex]g(x)= x^{2} -5,[/tex] find [tex](\frac{g}{f}) (x)[/tex]a. [tex]\frac{x^{2} - 5 }{4x +1 },x[/tex] ≠ [tex]-\frac{1}{4}[/tex]b. x[tex]\frac{4 x +1 }{x^{2} - 5}, x[/tex] ≠ ± [tex]\sqrt[]{5}[/tex]c. [tex]\frac{4x +1}{x^{2} -5}[/tex]d.[tex]\frac{x^{2} -5 }{4x + 1}[/tex]