3 years ago

Avery solves the equation below by first squaring both sides of the equation.

Mathematics

1 answer:

son4ous [18]3 years ago

5 0

Answer:

z = -1 and 7/3

Step-by-step explanation:

after squaring each side you get:

z² + 8 = (1 - 2z)²

z² + 8 = 1 - 4z + 4z²

combine like terms to get this trinomial:

3z² - 4z - 7, which has factors of (3z - 7)(z + 1)

therefore, z = 7/3 and z = -1

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