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Online Quiz (Worksheet A B C D)

Questions Per Quiz = 2 4 6 8 10

MEAP Preparation - Grade 7 Mathematics
2.83 Multiplication of a Monomial and a Trinomial - III

Example: 9x3(7x2+9y+7z) = _____ ?
Solution:
(9x3.7x2)+(9x3.9y)+(9x3.7z)
= (9.7).(x3.x2)+(9.9).(x3.y)+(9.7).(x3.z)
= 63x5+81x3y+63x3z
Directions: Solve the following multiplication problems. Also write at least 10 examples of your own.
Q 1: 4x3(3x2+6xy2+7z) = ______ ?
12x5+16x4y2+28x3z
12x5+16x4y2+30x3z

Q 2: 2x3(4x2+6xy+9z) = ______ ?
8x5+12x4y+28x3z
8x5+12x4y+12x3z
8x5+21x4y+18x3z
8x5+12x4y+18x3z

Q 3: 5x3(9x2+6y+3z2) = ______ ?
45x5+30x3y+15x3z
45x5+20x3y+15x3z2
45x5+30x3y+15x3z2
45x5+30x3y+15x3z3

Q 4: 6x3(7x2+7y+9z) = ______ ?
42x5+42x3y+54x3z
42x5+40x3y+54x3z
42x5+42x3y+54x2z
42x5+42x3y+54x3z2

Q 5: 7x3(9x2+7y+6z) = _______ ?
63x5+52x3y+42x3z
63x5+49x3y+63x3z
63x5+49x3y+42x3z
63x5+49x3y+42x4z

Q 6: 9x3(7x2+2xy+9z) = ______ ?
63x5+28x4y+81x3z
63x5+18x4y+82x3z
63x5+18x4y+80x3z
63x5+18x4y+81x3z

Q 7: 9x3(6x2+4y+3z2) = ______ ?
54x5+36x3y+27x3y2
54x5+36x3y+27xz2
54x5+36x3y+27x3z3
54x5+36x3y+27x3z2

Q 8: 4x3(9x2+6y+3z2) = ______ ?
36x5+24x3y+12x3z2
36x5+24x3y+12x3z
36x5+24x3y+12x2z2
36x5+24x3y+12x3y2

Question 9: This question is available to subscribers only!

Question 10: This question is available to subscribers only!


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