Find all real solutions. Do not use a calculator.4x3 - x + 4 = 16x2

A.
B. {±2, 4}
C. {±1, 4}
D.


Answer: D

Mathematics

You might also like to view...

Solve the problem.Does the graph of the function y = 2x + 4 sin x have any horizontal tangents in the interval  If so, where?

A. Yes, at x = , x = 
B. No
C. Yes, at x = 
D. Yes, at x = , x = 

Mathematics

Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.cos ? = - , sin ? > 0Find cos .

A. - 
B.
C. - 
D.

Mathematics

Simplify the expression. Express the answer so that all exponents are positive. Whenever an exponent is 0 or negative, we assume that the base is not 0.

A. x13y10
B.
C.
D.

Mathematics

Use the result ei? = cos ? + i sin ? to plot the complex number.6e(?i)/2

A.

B.

C.

D.

Mathematics