1. If x = -1, the value of -x2 + 1 is:
a) 0
b) 2
c) 3
d) None of them
2. The expession for the sentence: "Three times a number plus five" is...
a) (x + 5)3
b) 3·(x + 5)
c) 3x + 5
d) x3 + 5
3. is ...
a) ...a monomial of degree 5
b) ...not a monomial
c) ... a monomial whose coefficient is 3/2
d) ... a monomial of degree 7
4. x + x2 =
a) x3
b) 2x2
c) x + x2
d) 2x3
5. 7abc - 3a2 + 2b2 - 7cba, is ...
a) ... a polynomial of degree 2
b) ... a polynomial of degree 3
c) ... a binomial of degree 2
6. If P = x3 - 4x2 + 8x - 2 and Q = -4x2 + 2, then P - Q is:
a) x3 + 8x - 4
b) x3 - 8x2 + 8x
c) x3 - 8x2 + 8x -4
d) x3 + 8x + 4
7. and P·Q is:
a) -4x5 + 16x4 -30x3 + 16x2 + 18x - 4
b) -4x5 + 16x4 -30x3 + 18x - 4
c) -4x5 + 16x4 -30x3 + 18x + 4
d) -4x5 + 16x4 -30x3 - 16x2 + 18x - 4
8. If we get the common factor in the expression: 3ab - 6a3b + 21a3b3, we obtain...
a) ab·(3 - 6a2 + 7a2b2)
b) 3ab·(-2a2 + 7a2b2)
c) 3ab·(1 - 2a2 + 7a2b2)
9. x2 + 7 = 0, is ...
a) ...an expression
b) ... an identity
c) ... an equation
10. (2x2 - y)2 =
a) 2x4 + y2 - 4x2y
b) 4x4 + y2 - 4x2y
c) 4x4 - y2 - 4x2y
d) 2x4 - y2 - 4x2y
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