Question

simplify the following expressions (5x^2-y^2) x^2+3y^2) + (2x^2+y^2) (x^2-3y^2
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Answer 1

Answer:

7$x^{4}$ + 9x²y² - 6$y^{4}$

Step-by-step explanation:

(5x² - y²)(x² + 3y²) + (2x² + y²)(x² - 3y²) =

5$x^{4}$ - x²y² + 15x²y² - 3$y^{4}$ + 2$x^{4}$ + x²y² - 6x²y² - 3$y^{4}$ =

7$x^{4}$ + 9x²y² - 6$y^{4}$

Answer 2

Answer:

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