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Online Quiz (Worksheet A B C D)

Questions Per Quiz = 2 4 6 8 10

Grade 8 - Mathematics
7.11 Multiplication of a Multinomial by a Monomial (Vertical Method)

Multiplication of a Multinomial by a Monomial (Vertical Method)

Example: Multiply 3x3 + 7x2-6x-9 and 6x2.

Solution:
3x3 + 7x2-6x-9
* 6x2

18x5+42x4-36x3-54x2


Directions: Solve the following problems. Also write at least ten examples of your own.
Q 1: (9x3-7x2-6x+9)(7x) = _____?
63x4-49x3-42x2+63x
65x4-41x3-42x2+60
63x4-49x3-42x2+63
16x4-49x3-42x2+33

Q 2: (6x2+7x-7)(-5x) = _____?
30x3-35x2+35x
-30x3-35x2+35x
30x3-25x2+25x
11x3-15x2+15x

Q 3: (7x2+7x-15)(-x) = _____?
-x3+x2-15x
-7x3-7x2+15x
7x3+7x2-15x
7x3+7x2-15

Q 4: (16x2+9x-7)(3x) = _____?
64x3+25x2+17x
48x3+27x2-21x
45x3-21x2+18x
48x3-27x2+21x

Q 5: (7x2-9x-6)(6x) = _____?
42x3+54x2-36x
36x3+55x2-30x
32x3+24x2-18x
42x3-54x2-36x

Q 6: (17x2-9x+15)(3x) = _____?
48x3-22x2+35x
52x3-29x2+45x
41x3-28x2+25x
51x3-27x2+45x

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Question 8: This question is available to subscribers only!


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