Question : Is the algebraic expression a polynomial? If it is, write the polynomial in standard form : 2151872
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
Is the algebraic expression a polynomial? If it is, write the polynomial in standard form.
1) 5x-1 + 7 + 2x
A) Yes; 2x + 5x-1 + 7
B) No
2) 4x - 6 + 2x2
A) Yes; 2x2 + 4x - 6
B) No
3) (3x - 8/x)
A) No
B) Yes; (8/x) - 3
4) x2 + x4 - x3 - 6
A) No
B) Yes; x4 - x3 + x2 - 6
Find the degree of the polynomial.
5) -7x + 20x5 + 4
A) degree 5
B) degree 6
C) degree 20
D) degree -7
6) -3x + 2x7 + 5x6 - 24
A) degree 7
B) degree 4
C) degree 6
D) degree 2
7) -12x3 - 5x2 - 8x - 5x4 - 1
A) degree -12
B) degree 3
C) degree 2
D) degree 4
8) x5 - 12x3y6 + 9xy - 2x + 8
A) degree 16
B) degree -12
C) degree 5
D) degree 9
Perform the indicated operations. Write the resulting polynomial in standard form.
9) (4x7 + 8x5 - 4x) + (2x7 - 6x5 + 6x)
A) -2x7 - 2x5 + 14x
B) 6x + 2x7 + 2x5
C) 10x13
D) 6x7 + 2x5 + 2x
10) (2x8 + 9x7 - 5x6 - 7) + (4x8 + 7x7 - 5x6 + 9)
A) 12x42 + 2
B) 6x16 + 16x14 - 10x12 + 2
C) 6x8 + 16x7 - 10x6 + 2
D) 0x8 + 0x7 + 11x6 + 13
11) (-3x7 - 14x5 + 14) + (7x7 + 16x5 + 17)
A) 4x7 + 2x5 + 31
B) 4x7 + 19x5 + 3
C) 37x12
D) 4x7 + 2x5 + 3
12) (-4x5 - 6x4 + 6x3 - 8) + (8x5 + 9x4 - 9x3 - 3)
A) 4x5 + 15x4 - 15x3 + 5
B) 4x5 + 3x4 - 3x3 - 11
C) 12x5 + 15x4 - 15x3 + 5
D) 12x5 + 15x4 - 15x3 - 11
13) (4x5 + 18x3 + 3) - (7x5 - 19x3 + 2)
A) -3x5 + 25x3 + 5
B) 35x8
C) -3x5 + 37x3 + 5
D) -3x5 + 37x3 + 1
14) (7x7 - 3x6 - 2x5 - 3) - (9x7 - 5x6 - 7x5 + 2)
A) -2x7 + 2x6 + 5x5 - 5
B) -2x7 - 8x6 - 9x5 - 1
C) 16x7 - 8x6 - 9x5 - 5
D) 16x7 - 8x6 - 9x5 - 1
15) (5x5 - 13x2 + 13) - (3x5 - 4x2 - 6)
A) 2x5 - 10x2 + 7
B) 2x5 - 9x2 + 19
C) 2x5 - 9x2 + 7
D) 12x7
16) (6x2 + 4x + 7) + (2x2 + 9x - 2) - (5x + 2)
A) 6x2 + 8x + 3
B) 8x2 + 8x + 3
C) 8x2 + 8x + 7
D) 6x2 + 8x + 7
Find the product.
17) (x - 3)(x2 + 3x + 9)
A) x3 + 6x2 + 6x - 27
B) x3 + 27
C) x3 - 6x2 - 6x - 27
D) x3 - 27
18) (x - 11)(x2 + 3x - 8)
A) x3 + 14x2 + 25x - 88
B) x3 - 8x2 - 25x - 88
C) x3 + 14x2 + 41x + 88
D) x3 - 8x2 - 41x + 88
19) (x + 7)(x2 + 3x - 4)
A) x3 + 10x2 + 25x + 28
B) x3 + 10x2 + 25x - 28
C) x3 + 10x2 + 17x - 28
D) x4 + 7x3 + 3x2 + 17x - 28
20) (x + 4)(2x2 + 5x + 8)
A) 2x3 + 8x2 + 20x + 32
B) 40x4 + 2x3 + 160x2 + 32
C) 10x3 + 25x2 + 40x
D) 2x3 + 13x2 + 28x + 32
21) (4x - 1)(x2 - 2x + 1)
A) 4x3 - 8x2 + 4x + 1
B) 4x3 - 7x2 + 2x - 1
C) 4x3 - 9x2 + 6x - 1
D) 4x3 + 9x2 - 6x + 1