Find the product.(m - n)(m2 + mn + n2)
A. m3 - n3
B. m3 + 2m2n + 2mn2 - n3
C. m3 + n3
D. m3 - 2m2n - 2mn2 - n3
Answer: A
Mathematics
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Solve by isolating the absolute value and using the absolute value property.
+ 2 = 9
A. {
, - 
}
B. {- 
, 
}
C. ?
D. {
, - 
}
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Write the number in scientific notation.0.000000465013
A. 4.65013 × 107 B. 4.65013 × 106 C. 4.65013 × 10-7 D. 4.65013 × 10-6
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Solve the problem.The length of a rectangular flower bed is 7 ft. less than 3 times its width. The area of the bed is 20 ft2. Find the dimensions of the flower bed.
A. 3 ft by 3 ft B. 4 ft by 5 ft C. 4 ft by 2 ft D. 3 ft by 5 ft
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Determine whether the trinomial is a perfect square.x2 + 18xy + 81y2
A. No B. Yes
Mathematics