Math, asked by korbartron392, 7 months ago

use direct method to evaluate :
(z -2/3) (z + 2/3)

Answers

Answered by nishushrm

2

Step-by-step explanation:

(a-b)^2 (a+b)^2

a2-b2

a=z b=2/3

z^2 - 4/9

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Answered by Anonymous

3

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