X^4-9x^2+ 14 find the real-number solutions of the equation.

For f(x)=2x+1 and g(x)= x^2 -7, find (f•g)(x)

In the figure below, ∠dec ≅ ∠dce, ∠b ≅ ∠f, and segment df is congruent to segment bd. point c is the point of intersection between segment ag and segment bd, while point e is the point of intersection between segment ag and segment df. the figure shows a polygon comprised of three triangles, abc, dec, and gfe. prove δabc ≅ δgfe.

Find the area of an equilateral triangle with a side of 6 inches