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Key Quiz 5.1
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1
Expand fully: (3m - 1)(2m + 5).
A)6m2 - 5
B)6m2 + 13m + 5
C)6m2 + 13m - 5
D)6m2 - 13m - 5
2
Expand fully: (5t - 1).
A)25t + 1
B)25t2 - 10t + 1
C)25t2 - 10t - 1
D)25t2 + 10t + 1
3
Expand fully: (9q - 4r)(9q + 4r)
A)81q2 - 72qr - 16r2
B)81q2 + 72qr - 16r2
C)81q2 + 16r2
D)81q2 - 16r2
4
Find an expression for the area of the rectangle shown:
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A)3x2 + 5x + 12
B)3x2 - 5x - 12
C)3x2 - 12
D)3x2 + 5x - 12
5
Find the value of the area shown when k = 3.
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A)60 square units
B)56 square units
C)32 square units
D)24 square units





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