(3x + 4y + (3 x - 4y
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Answer:
9 x square - 24 xy - 12y square= answer is this.
Step-by-step explanation:
=3x ( 3 x - 4 y ) + 4y ( 3x - 4y )
=3X × 3X - 3X × 4y +4y × 3x - 4y × 4y
=9 x square - 12xy + 12xy - 16 y square .
=
9 x square - 24 xy - 12y square.
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