If you mean (3x-4)^2, the answer will be 9x^2 - 24x + 16.
is there any graphs that you see in the question? if so put a photo of them so i know what your seeing.
f(x) = (x + 7)² - 8
the equation of a quadratic in vertex form is
y = a(x - h)² + k
where (h, k ) are the coordinates of the vertex and a is a multiplier
given the quadratic in standard form : y = ax² + bx + c ( a ≠ 0 )
then the x-coordinate of the vertex is
= - 
f(x) = x² + 14x + 41 is in standard form
with a = 1, b = 14 and c = 41
= -
= - 7
substitute this value into the equation for y- coordinate
y = (- 7 )² + 14(- 7 ) + 41 = 49 - 98 + 41 = - 8
f(x) = (x + 7)² - 8 ← in vertex form
Answer:
A cross section perpendicular to the base would "cut" the prism through the height and width of the prism.
This would make a rectangle, with two sides the same length as the base ( 2 ft) and 2 sides the height of the prism ( 12 ft).
The answer would be:
A rectangle with two 12-ft sides and two 2-ft sides.