Subtract the sum of 3x²y -5a + 4b and -9x²y -7b+ 4a from their difference

Subject:
Math
Author:
kaylen
Created:
1 year ago

Answers 1

Answer:

25x²y - 17a + 14b

Step-by-step explanation:

sum = (3x²y -5a + 4b) + (-9x²y -7b+ 4a)

= -6x²y +8a -3b

difference = (3x²y -5a + 4b) - (-9x²y -7b+ 4a)

= 3x²y -5a + 4b +9x²y +7b-4a

=12x²y - 9a + 11b

∴ difference - sum = (12x²y - 9a + 11b) - (-6x²y +8a -3b)

=12x²y - 9a + 11b +6x²y - 8a + 3b

= 25x²y - 17a + 14b

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Subtract the sum of 3x²y -5a + 4b and -9x²y -7b+ 4a from their difference​

Answers 1

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Subtract the sum of 3x²y -5a + 4b and -9x²y -7b+ 4a from their difference