Question

Which of the following statements follows from (x - 3)^2 = 7? x2 + 9 = 7x - 3 = ±x - 3 = ±49

Answer 1

Answer:

$x-3=\pm\sqrt{7}$

Step-by-step explanation:

We have been given an equation $(x-3)^2=7$. We are asked to choose the correct answer about our given equation.

To solve our given equation, we will take square root of both sides of our equation as:

$\sqrt{(x-3)^2}=\pm\sqrt{7}$

Using radical rule $\sqrt[n]{a^n}=a$, we will get:

$x-3=\pm\sqrt{7}$

Therefore, option B is the correct choice.

Answer 2

Square root both sides

we get x-3=±√7

so that would be B