Solve using the division principle.22 = -2z
A. -24
B. -11
C. 24
D. 1
Answer: B
Mathematics
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Use the laws of exponents to simplify each expression using positive exponents only. Assume all variables represent nonzero real numbers.42 ? 49
A. 418 B. 1618 C. 411 D. 1611
Mathematics
Use Descartes' Rule of Signs and the Rational Zeros Theorem to find all the real zeros of the polynomial function. Use the zeros to factor f over the real numbers. f(x) = x4 + 21x2 - 100
A. -5, 5; f(x) = (x - 5)(x + 5)(x2 + 4) B. -2, -5, 2, 5; f(x) = (x - 2)(x + 2)(x - 5)(x + 5) C. 2; f(x) = (x - 2)2(x2 + 25) D. -2, 2; f(x) = (x - 2)(x + 2)(x2 + 25)
Mathematics
Factor completely.27a4 - 147b2
A. 3(3a2 - 7b)2 B. Prime C. 3(3a2 + 7b)2 D. 3(3a2 + 7b)(3a2 - 7b)
Mathematics
Add or subtract.
+ 
A. - 
B. - 
C. - 
D. - 
Mathematics