Point D is the in center of triangle ABC. Write an expression for the length x in terms of the three side lengths AB, AC, BC. Hint: Use areas of triangles...A=1/2bh

Select the correct answer from each drop-down menu. consider the following polynomials equations. 3x^2(x-1) and -3x^3+ 4x^2-2x+1 perform each operation and determine if the result is a polynomial. is the result of a + b a polynomial? yes or no is the result of a - b a polynomial? yes or no is the result of a · b a polynomial? yes or no