( 3a - 5b +4c ) ( 7a + 9b -8c ) and find the value at a = 1 , b = -1 , c =78,?
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( 3a - 5b +4c ) ( 7a + 9b -8c ) and find the value at a = 1
( 3a - 5b +4c ) ( 7a + 9b -8c ) and find the value at a = 1 , b = -1 , c =78,?
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To find the value of the expression (3a - 5b + 4c)(7a + 9b - 8c) when a = 1, b = -1, and c = 78, we can substitute these values into the expression and simplify it.
Substituting the values, we have:
(3(1) - 5(-1) + 4(78))(7(1) + 9(-1) - 8(78))
Simplifying further:
(3 + 5 + 312)(7 - 9 - 624)
(320)(-626)
The value of the expression when a = 1, b = -1, and c = 78 is -200,320.
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To find the value of the expression (3a - 5b + 4c)(7a + 9b - 8c) when a = 1, b = -1, and c = 78, we can substitute these values into the expression and simplify it.
Substituting the values, we have:
(3(1) - 5(-1) + 4(78))(7(1) + 9(-1) - 8(78))
Simplifying further:
(3 + 5 + 312)(7 - 9 - 624)
(320)(-626)
The value of the expression when a = 1, b = -1, and c = 78 is -200,320
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