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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: (19x2+7x-15)(2x) = _____?
38x3+14x2-30x
48x3-16x2+50x
38x3-14x2+30x
20x3-10x2+20x

Q 2: (6x2+7x-9)(11x) = _____?
77x3+66x2-94x
66x3+77x2-99x
66x3+76x2-94x
55x3+66x2-44x

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

Q 4: (7x2-9x-6)(6x) = _____?
32x3+24x2-18x
42x3+54x2-36x
42x3-54x2-36x
36x3+55x2-30x

Q 5: (9x3-7x2-6x+9)(7x) = _____?
16x4-49x3-42x2+33
63x4-49x3-42x2+63x
65x4-41x3-42x2+60
63x4-49x3-42x2+63

Q 6: (16x2+9x-7)(3x) = _____?
64x3+25x2+17x
48x3-27x2+21x
48x3+27x2-21x
45x3-21x2+18x

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Question 8: This question is available to subscribers only!


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