Q.2
Subtract the following polynomials;
(i) (6x + 8y – z) - (5x – 2y - z)
(ii) (3x3 - 5x + 7) - (5x3 - 2x - 1)
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Solution:-
(i) (6x + 8y – z) - (5x – 2y - z)
=> 6x + 8y - z - 5x +2y + z
= 6x -5x + 8y +2y - z + z
= 1x + 10y + 0
= x + 10y
(ii) (3x³- 5x + 7) - (5x³ - 2x - 1)
=> 3x³ - 5x + 7 - 5x³ + 2x + 1
= 3x³- 5x³- 5x + 2x +7 + 1
= - 2x³ - 3x + 8
= 2x³ + 3x - 8
i hope it helps you.
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hope it's help you.....................
dear eman
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