Answer:
C {–3, 2, 5}
Step-by-step explanation:
{–3, 2, 5}
Answer: D
It’s 4=D
m²-2mn+n²-9r
Answer: y=-3x+27
k = 2
Given that x = - 1 is a root of the equation, then it satisfies the equation.
Substitute x = - 1 into the equation and solve for k, that is
3(- 1)² - 2k - 2(- 1) - 1 = 0
3 - 2k + 2 - 1 = 0
- 2k + 4 = 0 ( subtract 4 from both sides )
- 2k = - 4 ( divide both sides by - 2 )
1.
