Answer: x = {1, 2}
<u>Step-by-step explanation:</u>
x⁶ - 9x³ + 8 = 0
Let u = x³
⇒ (x³)² - 9(x³)¹ + 8(x³)⁰ = 0
⇒ u² - 9u + 8 = 0
⇒ (u - 1)(u - 8) = 0
⇒ u = 1 or u = 8
Replace u with x³
x³ = 1 or x³ = 8
Take the cubed root of each side
x = 1 or x = 2
Answer: $60
Step-by-step explanation:
x=4
y=20

x=8
y=40

Therefore,
x=12
y=?
x*5=y
12*5=y
60=y
Answer:
8^-2a^7 = a^7/8^2 = a^7/64
Step-by-step explanation:
4,540,000,000 here you go this is in stdrd form