Answer:
k = - 
, k = 2
Step-by-step explanation:
Using the discriminant Δ = b² - 4ac
The condition for equal roots is b² - 4ac = 0
Given
kx² + 2x + k = - kx ( add kx to both sides )
kx² + 2x + kx + k = 0 , that is
kx² + (2 + k)x + k = 0 ← in standard form
with a = k, b = 2 + k and c = k , thus
(2 + k)² - 4k² = 0 ← expand and simplify left side
4 + 4k + k² - 4k² = 0
- 3k² + 4k + 4 = 0 ( multiply through by - 1 )
3k² - 4k - 4 = 0 ← in standard form
(3k + 2)(k - 2) = 0 ← in factored form
Equate each factor to zero and solve for k
3k + 2 = 0 ⇒ 3k = - 2 ⇒ k = -
k - 2 = 0 ⇒ k = 2
27-48x^4= 3(9-16x^4)
Because 3 is the GCF
A problem with extra information will be difficult to solve because you may not be able to tell what information you might need to use for the problem.
The function’s value when x = −1 will be C. g(−1) = 1.
<h3>How to calculate the value of the function?</h3>
It should be noted that that a function is simply used to show the relationship that exists between the variables.
There's a 2-column table with 5 rows. The first column is labeled g of x with entries negative 3, negative 2, 0, 2, 3. The second column is labeled f of x with entries.
The. function is x³ + 6x² + 12x + 8.
= x³ + 6x² + 12x + 8.
= (-1)³ + 6(-1)² + 12(-1) + 8
= -1 + 6 - 12 + 8
= 1
Therefore, the correct option is C.
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Not sure its A but use this http://www.mathpapa.com/algebra-calculator.html
