plz give me correct answer I will mark it as brainlist and I will give 50 thanks
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Answer:
7 ( 3x + 4y) (3x - 4y)
Step-by-step explanation:
63x² - 112y²
Take out common factor 7:
= 7(9x² - 16y²)
Write in perfect squares:
= 7 [ (3x)² - (4y)² ]
Apply a² - b² = (a + b)(a - b):
= 7 ( 3x + 4y) (3x - 4y)
THEREFORE ANS: 7 (3x +4y ) ( 3x - 4y)
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