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)
Accepted Solution
A:
Answer:1) D2) D3) C4) B5) C6) A7) CStep-by-step explanation:1) A polynomial contains integral positive degrees of x .Though 5 does not contain x, we can take as x power 0But 3^(1/2)+5 contains no x term, and an irrational term.Hence option D2) Grouping like terms and write in descending powers of x we getd. 9x^3-x^2-x-4 is right answer3) [4x^2-4x+5] - [3x^2-6x+2] = [4x^2-4x+5] - 3x^2+6x-2= X^2+2x+3So option c4) By multiplication we get product asB. 10x^2-7x-125) Rectangle area = length x width = (2h-1) (4h+3)= 8h^2+2h-3Option C6) Take common factor b outsideAnswer is a. 3b (2b^2+3b-4)7) Use the identity a^2-b^2C. (2x+5)(2x-5) is answer