Sketch the graph of 4 x squared + 25 x minus 21 using your graphing calculator. What are the x-intercepts of this graph? a. Negative three-fourths, 7 b. Three-fourths, negative 7 c. Negative three-fourths, negative 7 d. Three-fourths, 7 Please select the best answer from the choices provided A B C D

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