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### Grade 7 - Mathematics4.34 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: (17x2-9x+15)(3x) = _____?48x3-22x2+35x41x3-28x2+25x51x3-27x2+45x52x3-29x2+45x Q 2: (7x2+7x-15)(-x) = _____?-x3+x2-15x7x3+7x2-157x3+7x2-15x-7x3-7x2+15x Q 3: (16x2+9x-7)(3x) = _____?64x3+25x2+17x48x3+27x2-21x45x3-21x2+18x48x3-27x2+21x Q 4: (6x2+7x-7)(-5x) = _____?11x3-15x2+15x30x3-25x2+25x30x3-35x2+35x-30x3-35x2+35x Q 5: (7x2-9x-6)(6x) = _____?42x3-54x2-36x32x3+24x2-18x36x3+55x2-30x42x3+54x2-36x Q 6: (9x3-7x2-6x+9)(7x) = _____?63x4-49x3-42x2+6363x4-49x3-42x2+63x16x4-49x3-42x2+3365x4-41x3-42x2+60 Question 7: This question is available to subscribers only! Question 8: This question is available to subscribers only!

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