Select all of the following equation (s) that are quadratic in form.

x4 - 6x2 - 27 = 0

3x4 = 2x

2 (x + 5) 4 + 2x2 + 5 = 0

6 (2x + 4) 2 = (2x + 4) + 2

6x4 = - x2 + 5

8x4 + 2x2 - 4x = 0

Question

Mathematics

Tabitha Lindsey

13 July, 03:18

Select all of the following equation (s) that are quadratic in form.

x4 - 6x2 - 27 = 0

3x4 = 2x

2 (x + 5) 4 + 2x2 + 5 = 0

6 (2x + 4) 2 = (2x + 4) + 2

6x4 = - x2 + 5

8x4 + 2x2 - 4x = 0

+3

Answers (2)

Know the Answer?

Damien Bishop · Answer 1

An equation is quadratic if the greatest power of the coefficients is 2. Hence, for the given equations, only 6 (2x + 4) 2 = (2x + 4) + 2 is quadratic in nature.

Harriet · Answer 2

The answer is the first, fourth, and fifth equations

Select all of the following equation (s) that are quadratic in form.x4 - 6x2 - 27 = 03x4 = 2x2 (x + 5) 4 + 2x2 + 5 = 06 (2x + 4) 2 = (2x + 4) + 26x4 = - x2 + 58x4 + 2x2 - 4x = 0

Select all of the following equation (s) that are quadratic in form.

x4 - 6x2 - 27 = 0

3x4 = 2x

2 (x + 5) 4 + 2x2 + 5 = 0

6 (2x + 4) 2 = (2x + 4) + 2

6x4 = - x2 + 5

8x4 + 2x2 - 4x = 0