Question

fill in the blanks
(7a-6b+5c) ² + (7a+6b -5c)² =... *
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Answer 1

Answer:

( 49a + 36b +25c) + (49a + 36b + 25c)

= 49a + 36b + 25c + 49a +36b + 25c

= 49a + 49a + 36b + 36b + 25c + 25c

=98a + 72b + 50c

thats it , this is ur answer

HOPE IT HELPED U MARK AS BRAINLIEST