AlleyrvTriv
AlleyrvTriv AlleyrvTriv
  • 24-01-2019
  • Mathematics
contestada

PLEASE HELP I NEED HELP FAST!!!!!!!!!!!!!! WILL GIVE BRAINLIEST!!!!!!!! PLEASE EXPLAIN HOW YOU GO THE ANSWER!!!!!!!
x=3√x

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tramserran
tramserran tramserran
  • 24-01-2019

Answer:  x = 0, x = 9

Step-by-step explanation:

x = 3√x            Restriction: x ≥ 0

(x)² = (3√x)²      square both sides

x² = 9x              simplified

x² - 9x = 0        subtracted 9x from both sides

x(x - 9) = 0       factored quadratic equation

x = 0  and    x - 9 = 0         applied zero product property

x = 0  and   x = 9              solved for x

Both solutions satisfy the restriction!

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