Use multiplication to check the answer. If an answer is incorrect, find the correct answer.
A. Correct
B. Incorrect; should be 42
C. Incorrect; should be 42 R6
D. Incorrect; should be 41 R7
Answer: C
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Write the number in expanded form.623,865
A. (6 ? 105) + (2 ? 104) + (3 ? 103) + (8 ? 102) + (6 ? 101) + (5 ? 100) B. (6 ? 106) + (2 ? 105) + (3 ? 104) + (8 ? 103) + (6 ? 102) + (5 ? 101) C. (6 ? 101) + (2 ? 102) + (3 ? 103) + (8 ? 104) + (6 ? 105) + (5 ? 106) D. (6 ? 100) + (2 ? 101) + (3 ? 102) + (8 ? 103) + (6 ? 104) + (5 ? 105)
Write the binomial expansion of the expression.(4x - 1)5
A. (16x2 - 8x + 1)5 B. 1024x5 + 20x4 - 160x3 - 160x2 + 20x - 1 C. 1024x5 - 1280x4 + 640x3 - 160x2 + 20x - 1 D. 1024x5 - 256x4 + 64x3 - 16x2 + 4x - 1
Factor the GCF from the polynomial.10x - 40
A. 10(x - 40) B. 10(x - 4) C. 10(x + 4) D. 4(x - 10)
Solve the equation.-(3y + 1) - (-2y - 5) = -9
A. {15} B. {5} C. {13} D. {-13}