Math Mcqs
- If polynomials P(x) and Q(x) are given by P(x) = 3x2 + 2x - 1 and Q(x) = - x2 - 2x + 5,
then P(x) - Q(x) =
A) 2x2 - 6
B) 4x2 + 4x + 4
C) 3x2 + 4x - 6
D) 4x2 + 4x - 6
E) 4x2 + 4x - 4 - Polynomials P(x) and Q(x) are given by P(x) = 2x2 + 3x + 1 and Q(x) = 2 x2 + B x - x + 1 where B is a constant. Find B so that P(x) = Q(x).
A) 0
B) 1
C) 2
D) 3
E) 4 - (2 x - 4)(3 x - 2) =
A) 6x2 - 16x + 8
B) -10x + 8
C) 6x2 - 8x + 8
D) 6x2 + 8x + 8
E) 6x2 + 16x + 8
- Which of the following represents the product of 4 less than 3 times x and 3 more than twice x?
A) (4 - 3x)(2x + 3)
B) (3x + 4)(2x + 3)
C) 6x2 - 2x - 12
D) 6x2 + 2x - 12
E) 6x2 - 2x + 12 - 3 x2 + 4x + 1 =
A) (3x + 1)(x + 1)
B) (x - 1)(3x - 1)
C) (3x - 1)(x - 1)
D) (x + 1)(3x + 1)
E) (3x + 1)(x + 1) - Polynomials P(x) and Q(x) are given by P(x) = - x2 + A x - 2 and Q(x) = (x - 2)(- x + 1) where A is a constant. Find A so that P(x) = Q(x).
A) 0
B) 3
C) - 2
D) 1
E) - 3 - Which of the three polynomials are equivalent?
(I) (2x + 2)(3x - 3) , (II) 6 x2 - 6 , (III) 6(x + 1)(x - 1)
A) (I) and (III) only
B) (II) and (III) only
C) (I) and (II) only
D) (I) , (II) and (III)
E) None are equivalent polynomials - If P(x) = 2x + 3 and Q(x) = - x - 2, then P(x) - 2 x Q(x) =
A) 2x2 + 6x + 3
B) 4x + 7
C) - 2x2 - 2x + 3
D) 2x2 - 6x + 3
E) 2x2 + 6x - 3 - Which of these is not a polynomial?
(I) 2 √x + 2
(II) |x2 + 2| + 3
(III) 2 x2 + 3x + 1
(IV) x2 + x / (x + 1) + 2
A) (II) and (IV) only
B) (I) , (II) and (IV) only
C) (I) , (II) , (III) and (IV)
D) (I) and (II) only
E) (III) only - P(x) is a polynomial. If P(x) = - 4 x2 + 3, then P(x + 1) =
A) - 4 x2 + 4
B) x + 1
C) - 4 x2 - 8x - 1
D) - 4 x2 + x + 4
E) x + 4
- D
- E
- A
- C
- E
- B
- D
- A
- B
- C
Tags: Math Mcqs
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