Solve the equation.x(x2 + 2) = 8 + x3
A. 
B. 
C. {2}
D. {8}
Answer: B
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Translate the sentence to an algebraic inequality.The score on a test was between 82 and 70.
A. x > 70 B. x < 82 C. 70 < x < 82 D. 82 < x < 70
Multiply.-5x2z4 ? 4x3z2
A. -20xz6 B. -20x6z5 C. -20xz5 D. -20x5z6
Decide whether the statement is true or false. If it is false, tell why.If k is a prime number, then x2 = k will have two rational solutions.
A. True B. False; the solutions will be irrational because a prime number cannot be a perfect square. C. False; the equation will have no real number solutions.
Find the coordinates of the vertex and x-intercepts for the quadratic function.f(x) = -x2 + 4x + 5
A. vertex (2, -9) x-intercepts (5, 0), (- 1, 0) B. vertex (-2, 9) x-intercepts (-5, 0), (1, 0) C. vertex (2, 9) x-intercepts (5, 0), (- 1, 0) D. vertex (-2, -9) x-intercepts (-5, 0), (1, 0)