Juan C.

asked • 01/28/15

Which of the following represents the quadratic equation below in standard form? HELP ASAP IM TAKING A TEST

Which of the following represents the quadratic equation below in standard form?

A.
  B.
  C.
  D.

2 Answers By Expert Tutors

By:

Mark M. answered • 01/28/15

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Standard form is
 
Ax + By = C
 
None of the given answers are in standard form.
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Juan C.

mark?
 
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01/28/15

Mark M.

x2 - 5 = 5x2 + 2x
-5 = 4x2 + 2x
4x2 + 2x = -5                  This is the given equation in standard form. It is not one of the choices.
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01/28/15

Juan C.

help me out with the other questions
 
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01/28/15

Juan C.

Which of the following best describes the roots of the polynomial function below?

  A. One real root   B. Two real roots   C. Two complex roots   D. One real root and one complex root
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01/28/15

Mark M.

The nature of roots of a quadratic can be determined using the discriminant of the quadratic formula: b2 - 4ac.
If
b2 - 4ac = 0, then two equal real roots.
b2 - 4ac > 0, then two unequal real roots.
b2 - 4ac < 0, then two complex conjugate roots
 
In this case, 52 - 4(2)(9).
This number is negative, therefore there are two complex roots
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01/28/15

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