Answer:
x = - 1, x = 1, x = 2
Step-by-step explanation:
The coefficients of the polynomial sum to zero, that is
- 1 + 2 + 1 - 2 = 0
This indicates that x = 1 is a zero
let x = - 1, then
- (- 1)³ + 2(- 1)² + (- 1) - 2 = 1 + 2 - 1 - 2 = 0
Thus x = - 1 is a zero
let x = 2
- (2)³ + 2(2)² + 2 - 2 = - 8 + 8 + 2 - 2 = 0
Thus x = 2 is a zero
The 3 zeros are x = - 1, x = 1, x = 2
27 is 12% of 225
you can find this by dividing 27 by 0.12
You could subtract 17 from 67 and then divide by 3 and you could write an equation like 3x+17=67
Answer:
A
Step-by-step explanation:
Substitutions
x = -2: x^2 - x = 2^2 - - 2 = 4+ 2 = 6
y = 3: = 2*3 = 6
Answer
6/6 = 1
Answer: A