Question

Solve for x in the equation x² - 4x - 9 = 29.

Answer 1

Answer: First option.

Step-by-step explanation:

 1. To solve this problem you can applly the quadratic formula, which is shown below:

 $x=\frac{-b+/-\sqrt{b^{2}-4ac}}{2a}$

2. The quadratic  equation is:

$x^{2}-4x-9-29=0\\x^{2}-4x-38=0$

3. Then:

a=1

b=-4

c=-38

4. Therefore, when you substitute these values into the quadratic formula, you obtain the following result:

$x=\frac{-(-4)+/-\sqrt{(-4)^{2}-4(1)(-38)}}{2(1)}$

x=2±√42

Answer 2

Answer:

answer is A x=2+/- squareroot of 42

Step-by-step explanation: