Answer:x = -2 ± 2√2
Explanation:To answer this question, we will first need to put the equation in the standard form: ax² + bx + c = 0
This can be done as follows:
x² + 4x + 4 - 8 = 0
x² + 4x - 4 = 0
Comparing the equation we reached with the general form, we would find that:
a = 1
b = 4
c = -4
Now, to get the solution of the equation, we will use the quadratic formula shown in the attached image
Substituting in the equation with the values of a, b and c, we can get the two roots as follows:
x =
![\frac{-4 +/- \sqrt{(4)^2 - 4(1)(-4)} }{2(1)}](https://tex.z-dn.net/?f=%20%5Cfrac%7B-4%20%2B%2F-%20%5Csqrt%7B%284%29%5E2%20-%204%281%29%28-4%29%7D%20%7D%7B2%281%29%7D%20)
x = -2 ± 2√2
Hope this helps :)
Answer:
x > 2
Step-by-step explanation:
![4x + 2 > 10 \\ \\ 4x > 10 - 2 \\ \\ 4x > 8 \\ \\ x > \frac{8}{4} \\ \\ x > 2](https://tex.z-dn.net/?f=4x%20%2B%202%20%3E%2010%20%5C%5C%20%20%5C%5C%204x%20%3E%2010%20-%202%20%5C%5C%20%20%5C%5C%204x%20%3E%208%20%5C%5C%20%20%5C%5C%20x%20%3E%20%20%5Cfrac%7B8%7D%7B4%7D%20%20%5C%5C%20%20%5C%5C%20x%20%3E%202)
0.089 into a percentage is 8.9%
Answer: the answer is D.
Step-by-step explanation: