Question

Factorized form of 81 k²-64
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Answer 1

Answer:

Answer is k = 8/9

Step-by-step explanation:

81k² - 64 = 0

81 k² = 64

k² = 64/81.

k = 8/9

Answer 2

AnsweR :-

• $(9k + 8)(9k - 8)$

SolutioN :-

$81 {k}^{2} - 64 \\ \\ = {(9k)}^{2} - ( {8)}^{2} \\ \\ = (9k + 8)(9k - 8)$

Identity UseD :-

• ${a}^{2} - {b}^{2} = (a + b)(a - b)$

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Value of K :-

$\implies 9k-8=o \\ \\ \implies 9k=8 \\ \\ \implies \boxed{ k = \frac{8}{9}}$