Which expression is not a polynomial? a. 3x^3+5x-4b. (2/5) x-7c. 5d. 3^(1/2)+5which answer expresses the polynomial in standard form? 12x^3+5+5x^2-6x^2-3x^3-9-x a. 9x^3-x^2-x+45b. 9x^3+x^2-x-2c. 9x^5-x^2-x-4d. 9x^3-x^2-x-4which expression is equivalent to this expression? [4x^2-4x+5] - [3x^2-6x+2]a. 12x^2-10x+7b. x^2-2x+3c. x^2+2x+3d. x^2-10x+7which expression is equivalent to (2x-3) (5x+4)a. 10x^2-12b. 10x^2-7x-12c. 10x^2+23x+12d. 7x^2-2x+1which expressions represents the area of the rectangle? (2h-1) and 4h+3a. 8h^2-3b. 6h+2c. 8h^2+2h-3d. 8h^2-2h+3which expression represents the polynomial in factored form? 6b^3+9b^2-12ba. 3b (2b^2+3b-4)b. 3b^3 (2b^2+3b-4)c. 3b (2b^2+9b^2-12b)d. 3b^2 (3b^2+6b-9)which expression represents the polynomial factored form? 4x^2-25a. (4x+5) (4x-5)b. (4x-5) (4x-5)c. (2x+5)(2x-5)d. (2x-5)(2x-5)