Answer:
f(x) = x^3 + 4x^2 - 7x - 28
Step-by-step explanation:
If the roots of this cubic function are Square root of seven, -Square root of seven, -4, then the factors must be (x^2 - 7)(x + 4).
Multiplying this out, we get f(x) = x^3 + 4x^2 - 7x - 28.
Note: Please use " ^ " to indicate exponentiation.
Answer:
a. the coordinates of g = 1 and -5
explanation
x-1=0 OR x+5=0
collect like terms
x=1. OR x=-5
Answer:
1/8 and 7/8
Step-by-step explanation:
First convert 1/2 to 4/8.
Then, subtract and add 3/8
(4/8 - 3/8 = 1/8, 4/8 + 3/8 = 7/8)
Answer:
The value of k is -11.
Step-by-step explanation:
Given equation is 3√(x-k)-2=10
Step 1: Since the value of x = 5, we will substitute value of x in the given equation.
3√(5-k)-2=10
=> 3√(5-k) = 10 + 2
=> 3√(5-k) = 12
Step 2: Dividing both sides by 3
3√(5-k)/3 = 12/3
√(5-k) = 4
Step 3 : Squaring both sides
√(5-k)^2 = 4^2
(5-k) = 16
Step 4 : Separating the value of
=> 5-16 = k
=> -11 = k
=> k = -11
Therefore, the value of k is -11.
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