Question

18x^2y^2-3x^2+15y^2-21z^2​

Answer 1

Answer:

Given,

$18 {x}^{2}{y}^{2} \: - \: 3 {x}^{2} \: + \: 15 {y}^{2} \: - \: 21 {z}^{2}$

To Solve:

===> + 18x²y² - 21z²

- 3x²

+ 15y²

_________________

- 15x² + 33y² - 21z²

Ans) - 15x² + 33y² - 21z²

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