Answer:
B. Taking square root of both sides
Step-by-step explanation:
The first step given to us is
![(x+\frac{b}{2a} )^2=\frac{b^2-4ac}{4a^2}](https://tex.z-dn.net/?f=%28x%2B%5Cfrac%7Bb%7D%7B2a%7D%20%29%5E2%3D%5Cfrac%7Bb%5E2-4ac%7D%7B4a%5E2%7D)
When we take square root of both sides we obtain;
![x+\frac{b}{2a}=\pm \sqrt{\frac{b^2-4ac}{4a^2} }](https://tex.z-dn.net/?f=x%2B%5Cfrac%7Bb%7D%7B2a%7D%3D%5Cpm%20%5Csqrt%7B%5Cfrac%7Bb%5E2-4ac%7D%7B4a%5E2%7D%20%7D)
Therefore the corect answer is B
I think its D i hope this helped i hope we can be friends and correct me if wrong!!!
The greatest common factor of both x^4 and x^3 would be x^3, since the largest number of X variables that you can evenly take out between both terms is x^3 or x cubed.
Answer:
Step-by-step explanation:
Q1
- 6 + ∛3x² = 18
- ∛3x² = 12
- 3x² = 12³
- 3x² = 1728
- x² = 1728/3
- x² = 576
- x = √576
- x = ±24
Option D
Q2
- ∛3x² - 5 = 10
- ∛3x² = 15
- 3x² = 15³
- 3x² = 3375
- x² = 1125
- x = √1125
- x = ± 15√5
Option A
Q3
- 3∛x² - 2 = 7
- 3∛x² = 9
- ∛x² = 3
- x² = 3³
- x² = 27
- x = √27
- x = ±3√3
Option C
Q4
- ∛4x² + 2 = 9
- ∛4x² = 7
- 4x² = 7³
- 4x² = 243
- x² = 243/4
- x = √243/4
- x = ± 7√7/2
Option D