Substitute the value(s) for the variable(s) and then evaluate.(x + 3)2 - 2 ? 5; x = 4
A. 235
B. 39
C. 15
D. 115
Answer: B
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Which of the following applications might not want to use negative and positive numbers to represent their mathematical needs? ?
A. ?A company wants to create a spread sheet of losses and profits for the month. B. ?A company wants to create a spread sheet showing debits and credits. C. ?A company want to show the variance for each expense in the company. D. ?The variance can never be negative. E. ?The variance can be either negative or positive.
Solve the problem.Suppose that f(x) = x2/3 - 3x1/3. Find the values of x such that f(x) = 10.
A. -5, 2 B. -2, 5 C. -125, 8 D. -8, 125
Express the following using negative exponents.
A. 4-5 B. 5-5 C. 5-4 D. 54
Factor completely, or state that the polynomial is prime.8x3 - 8
A. 8(x3 - 1) B. 8(x + 1)(x2 - x + 1) C. prime D. 8(x - 1)(x2 + x + 1)