State whether the statement is True or False.
$(3 x^{2} + 5 y^{2}) (3 x^{2} - 5 y^{2})$ is equal to $9 x^{4} - 25 y^{4}$ .

True

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False

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Solution

The correct option is A True
$M u l t i p l y (3 x^{2} + 5 y^{2}) (3 x^{2} - 5 y^{2}) = 9 x^{4} - 15 x^{2} y^{2} + 15 x^{2} y^{2} - 25 y^{4} = 9 x^{4} - 25 y^{4}$

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