Factor completely.5x3 + 10x2 - 40x
A. (x - 2)(5x2 + 20)
B. (5x2 + 10x)(x - 4)
C. 5x(x - 2)(x + 4)
D. 5x(x + 2)(x - 4)
Answer: C
Mathematics
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Rewrite the sum using sigma notation. -
+
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A.
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Mathematics
Use the Factor Theorem to determine whether x - c is a factor of f. If it is, write f in factored form, that is, write f in the form f(x) = 5x4 - 7x3 + 17x2 - 21x + 6; c = 1
A. Yes; f(x) = (x - 1)(5x3 + 3x2 + 15x - 6) B. Yes; f(x) = (x - 1)(5x3 - 2x2 - 16x - 6) C. No D. Yes; f(x) = (x - 1)(5x3 - 2x2 + 15x - 6)
Mathematics
Multiply using the rule for finding the product of the sum and difference of two terms.(x2 + 5)(x2 - 5)
A. x4 - 10 B. x4 - 10x2 - 25 C. x4 - 25 D. x4 + 10x2 - 25
Mathematics
Solve by completing the square.a2 + 2a - 15 = 0
A. -3, 5
B. 3, -5
C. ±
D. -10, -5
Mathematics