An expression that occurs in calculus is given. Factor completely.3(x + 5)2(2x - 1)2 + 4(x + 5)3(2x - 1)
A. (x + 5)2(2x - 1)(x + 17)
B. (x + 5)2(10x + 17)
C. (x + 5)2(2x - 1)(10x + 17)
D. (x + 5)(2x - 1)(10x + 17)
Answer: C
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Factor.9x2 - 25
A. (3x + 5)(3x - 5) B. (3x + 5)2 C. (3x - 5)2 D. 9x2 - 25
Which of the following are true?
(a) All squares are rhombi. (b) All rectangles are parallelograms. (c) All parallelograms with congruent diagonals are rectangles. (d) All rhombi with congruent diagonals are squares. (e) Both (a) and (b) are correct. (f) Answers (a)–(d) are all correct.
Determine whether the statement is true or false.The sum of two negative fractions is always a negative number.
A. True B. False
The following expressions represent denominators of rational expressions. Find their LCD.n, 5 + n, and 5 - n
A. n(5 + n)(5 - n) B. n2 + 25 C. 25n2 D. 25 - n2