Status: Waiting for your answer. Simplify the following expression. (– 4x^{3}y^{7})^{3} Choose the correct response below. a) -12x^{9}y^{21} b) -64x^{9}y^{21} c) -12x^{4}y^{6} d) 64x^{9}y^{21}

Choose the correct response below.