Genius Jnr - Write each of the following statements by using appropriate grouping symbols: (i) The sum of a − b and 3a − 2b + 5 is subtracted from 4a + 2b − 7. (ii) Three times the sum of 2x + y − {5 − (x − 3y)} and 7x − 4y + 3 is subtracted from 3x − 4y + 7. (iii) The subtraction of x2 − y2 + 4xy from 2x2 + y2 − 3xy is added to 9x2 − 3y2 − xy.

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Write each of the following statements by using appropriate grouping symbols:
(i) The sum of a − b and 3a − 2b + 5 is subtracted from 4a + 2b − 7.
(ii) Three times the sum of 2x + y − {5 − (x − 3y)} and 7x − 4y + 3 is subtracted from 3x − 4y + 7.
(iii) The subtraction of x² − y² + 4xy from 2x² + y² − 3xy is added to 9x² − 3y² − xy.

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