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Student ID:42042190

1. Perform the indicated operations, write the polynomial in standard form and indicate its degree (18x* - 2x3 - 7x + 8) - (9x* - 6x3 - 5x + 7) (2x + 5) (2x - 5)(4x2 + 25) (7xy2 - 10y)(7xy2 + 10y) (x" + 2)(x" - 2) - (x" - 3)2 (Full Marks: 20 points) 2. In exercise set P.4, exercises 28 through 58 inclusive (page 61) solve those the last digit of which matches the last digit of your student ID. (Full marks: 20) 3. Express the area of the figure here below in terms of x as a polynomial in standard form. D is the last digit of your student ID. For D=0, use D=10. All angles are right (i.e., 90) (even of it doesn't seem so (@). Substitute for D only at the final step; but that is just a suggestion. D D/7 X\f