Mathematics · Algebraic Expressions

Find the expansion of the following: (3x + 7y)(3x - 7y)

Verified Solution4 OptionsUpdated: October 2026👁️1 View

13x 4 + 7y 3
249y 2 + 9x 2
33x 2 - 7y 3
49x 2 - 49y 2✓

Correct answer

9x 2 - 49y 2

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