Question

plz give me correct answer I will mark it as brainlist and I will give 50 thanks​

Answer 1

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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