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EXERCISE 19(B)3a + 4b + 7c,2x2 + xy - y?x2 - X + 1,a2 - ab + bc-5a + 3b - 60-x² + 2xy + 3y²-5x² + 2X-22ab + bc - 2a?4x - x2 + 8xy - 4x + 2y2and 4a - 2b - 40.and 3x2 - 10xy +4y2.and 3x2 - 3x + 1.and -3bc + 3a2 + ab.and -10 + 5x - 2x2.and 3y2 - xy + 6x.(IV)(vi) 3x + 4xy - y?Find the surn of:(v) 4x2 + 7 - 3x,​

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ANSWER:

EXERCISE 19(B)

3a + 4b + 7c,

2x2 + xy - y?

x2 - X + 1,

a2 - ab + bc

-5a + 3b - 60

-x² + 2XY + 3y²

-5x² + 2X-2

2ab + bc - 2a?

4X - x2 + 8

xy - 4x + 2y2

and 4A - 2b - 40.

and 3x2 - 10xy +4y2.

and 3x2 - 3x + 1.



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