The volume V (in cubic feet) of a hot tub is modeled by the polynomial function V(x) = x^3 - 10x^2 + 11x + 70, where x is the length of the hot tub.

a. Explain how you know x = -5 is not a possible rational zero.

b. Show that x + 2 is a factor of V(x). Then factor V(x) completely.

Given: ae ≅ ce ; de ≅ be prove: abcd is a parallelogram. we have that ab || dc. by a similar argument used to prove that △aeb ≅ △ced, we can show that △ ≅ △ceb by. so, ∠cad ≅ ∠ by cpctc. therefore, ad || bc by the converse of the theorem. since both pair of opposite sides are parallel, quadrilateral abcd is a parallelogram.