Answer: x" = 5.69
Step-by-step explanation:
The graphic solution is attached.
Verifying the solution:
Existence condition: x > 0
2x - 4 = √x + 5
√x =2x - 4 - 5
√x =2x - 9 (²)
x = (2x - 9)²
x = 4x² - 36x + 81
4x² - 36x - x + 81 = 0
4x² - 37x + 81 = 0
Δ = -37² - 4.4.81 = 1369 - 1296 = 73
x = 37 ±√73/8
x' = 3.55
x" = 5.69
checking:
2*3.55 - 4 = 3.1
√3.55 + 5 = 6.88 Its not the same ∴ 3.55 is not a solution
2*5.69 - 4 = 7.39
√5.69 + 5 = 7.39 ∴ it's the only solution
Answer:
x=18
Step-by-step explanation:
ok, so you mulityply base and hieght then divide by 2
your base is 6 and your height is 6
6x6=36
36/2=18
your welcome
I believe that there are four different outcomes.
That is false. When you look at a number line, -3 is to the left of -2. A number to the left of another number is less than the number to the right.
Answer:
x³+1
Step-by-step explanation:
4x-8 | 4x⁴ - 8x³ + 4x - 8
<u>_4x⁴ - 8x³______</u> <-- x³
4x - 8
<u> 4x - 8</u> <-- 1
0 | x³+1
Therefore, (4x⁴-8x³+4x-8)/(4x-8) = x³+1
