Answer:
Option (2)
Step-by-step explanation:
Given equation is,
x⁴- 9x² + 8 = 0
Let x² = t
By substituting the value of x²= t in the equation,
t² - 9t + 8 = 0
t² - 8t - t + 8 = 0
t(t - 8) - 1(t - 8) = 0
(t - 1)(t - 8) = 0
(t - 1) = 0 ⇒ t = 1
(t - 8) = 0 ⇒ t = 8
Since, t = x²
x² = 1 ⇒ x = ±1
x² = 8 ⇒ x = ±2√2
Therefore, Option (2) will be the correct option.
Answer:
A fraction bar divided into 2 parts. 1 part is shaded.
Step-by-step explanation:
Divide your answers, as well as your problem.
Problem = 2/4 = .5
First answer = 1/2 = .5
For the 1st fraction, since 14 × 1 = 14,
9
14
=
9 × 1
14 × 1
=
9
14
Likewise, for the 2nd fraction, since 7 × 2 = 14,
6
7
=
6 × 2
7 × 2
=
12
14
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
9
14
<
12
14
or
9
14
<
6
7
The answer is A just trust me
