Factor the difference of two squares completely.49x2 + 36
A. (7x + 6)2
B. (7x - 6)2
C. (7x + 6)(7x - 6)
D. Prime
Answer: D
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Solve the problem.Suppose that 
= 5. Find 
and 
.
A. 5; -5 B. 2; 5 C. 0; 5 D. 0; -5
Solve the application problem.Find three consecutive integers such that the square of the sum of the smaller two is 297 more than the square of the largest.
A. 10, 11, 12 B. 8, 10, 12 C. -10, -9, -8 D. 10, 11, 12, or -10, -9, -8
Estimate the interval(s) on which the function is increasing and decreasing.f(x) = x3 + 3x2
A. increasing on (-2.00, 0); decreasing on (-?, -2.00) and (0, ?)
B. increasing on (-?, -2.00) and (-2.00, 0); decreasing on (0, ?)
C. increasing on (-2.00, ?); decreasing on (-?, -2.00)
D.
| increasing on (-?, -2.00) and (0, ?); decreasing on (-2.00, 0) |
Write the word statement as an equation. Use x to represent the unknown number. Do not solve.The sum of four times a number and 4 is equal to the difference of twice the number and 10.
A. 4x + 4 = 2x + 10 B. 4x + 4 = 2x - 10 C. 4(x + 4) = 2x - 10 D. 4x + 4 = 10 - 2x