Answer:
<u>[x - (4 + 2√3)] and [x - (4 - 2√3)]</u>
Step-by-step explanation:
Given :
Divide throughout by 3 to simplify :
- 1/3 x (3x² - 24x + 12)
- x² - 8x + 4
Using the Quadratic Formula :
- x = -b ± √b² - 4ac / 2a
- x = -(-8) ± √(-8)² - 4(1)(4) / 2(1)
- x = 8 ± √64 - 16 / 2
- x = 8 ± √48 / 2
- x = 8 ± 4√3 / 2
- x = 4 ± 2√3
Factors are :
- <u>[x - (4 + 2√3)] and [x - (4 - 2√3)]</u>
Line up the decimals on top of each other when doing the adding but still keep the numbers in the same order, it might look off and you should get 2.34.
Answer:
sqrt(172) = hypotenuse
Step-by-step explanation:
IF those are the leg lengths (sides) and not the hypotenuse, then use Pythagorean theorem
c^2 = 7^2 + sqrt (123) ^2
<u>c = sqrt (172)</u>
If sqrt 172 is the hypotenuse :
(sqrt123)^2 = 7^2 + x^2
then x = <u>sqrt (74 ) </u>