Question

find the value of please answer this question if you answer this question I will make you brain list ​

Answer 1

Answer:

x = 12

Step-by-step explanation:

xyz = (3y + z)² - (3y - z)²

xyz = [(3y + z) + (3y - z)] × [(3y + z) - (3y - z)]

∵ {a² - b² = (a + b)(a - b)}

xyz = (6y) × (2z)

xyz = 12yz

x = 12yz/yz

x = 12

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Answer 2

Solution

$xyz\: =\: (3y\: +\:z)^{2}\:-\:(3y\:-\:z)^{2}$

$xyz \: = \: 9y^{2}\: +\: z^{2}\: + \: 6yz - (9y^{2}\: +\: z^{2}\: - \: 6yz)$

$xyz \: = \:\cancel{9y^{2}} \: +\: \cancel{z^{2}} \: + \: 6yz - \cancel{9y^{2}} \: - \: \cancel{z^{2}} \: + \: 6yz$

$xyz \: = \: 6yz \: +\: 6yz$

$xyz \: =\: 12yz$

$x\: =\: \dfrac{12yz}{yz}$

ANSWER

$\boxed{x\: =\: 12}$