Answer:
8.6
Step-by-step explanation:
The square root of 74 is 8.602325267. If you round this number to the nearest tenth you get 8.6
The equation given above is written here below with all the terms transposed to only one side of the equation.
2x² + 3x + 8 = 0
The quadratic formula used for the determination of the roots is,
x = (-b +/- sqrt (b² - 4ac)) / 2a
In the quadratic equation above, we have the numerical coefficients.
a = 2
b = 3
c = 8
Substituting the known values,
x = (-3 +/- sqrt (3² - 4(2)(8))/ (2)(2)
x = -0.75 + 1.854i and x = -0.75 - 1.854i
By the calculated roots above, it is known that the roots are imaginary.
Answer:
No
Step-by-step explanation:
If (x - h) is a factor of f(x) then f(h) = 0
Here
f(x) = 2 - 3x³ + 4x² + x + 2 and
if divisor (x - 2) is a factor the f(2) = 0
f(2) = 2 - 3(2)³ + 4(2)² + 2 + 2
= 2(16) - 3(8) + 4(4) + 4
= 32 - 24 + 16 + 4
= 28 ≠ 0
Then (x - 2) is not a factor of the polynomial
Answer:
<h2>A</h2>
Step-by-step explanation: