If you would like to find the rational roots of x^4 + 8 * x^3 + 7 * x^2 - 40 * x - 60 = 0, you can do this using the following steps:
x^4 + 8 * x^3 + 7 * x^2 - 40 * x - 60 = 0
(x^2 - 5) * (x^2 + 8 * x + 12) = 0
(x^2 - 5) * (x + 6) * (x + 2) = 0
1. x = - sqrt(5)
2. x = sqrt(5)
3. x = - 6
4. x = - 2
The correct result would be -6 and -2.
You can use mental math to help you multiply numbers by using the distributive property to divide it easily and then add them up to get a quick answer.
This is algebra 1 or 2
Can you please mark me brainlist please
Answer: 20+20+240+192=472
Step-by-step explanation:
Answer:
750/100 X 8 = 60
60 X 5 = 300
she will earn $300 simple interest
balance of account = $1050
compound interest
100 + 8 = 108
108/100= 1.08
750 X 1.08^5 = 1101.9960576
1102.00 - 750 = $352 compound interest
balance of account = $1102