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What should be subtracted from -7mn + 2m...

What should be subtracted from `-7mn + 2m^2 + 3n^2 " to get " m^2 + 2mn + n^2` ?

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NCERT EXEMPLAR-ALGEBRAIC EXPRESSIONS-Exercise
  1. What should be added to 3pq + 5p^2 q^2 + p^3 " to get " p^3 + 2p^2q^2 ...

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  2. What should be subtracted from 2x^3 - 3x^2y + 2xy^2 + 3y^3 " to get " ...

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  3. What should be subtracted from -7mn + 2m^2 + 3n^2 " to get " m^2 + 2mn...

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  4. How much is 21a^3 - 17 a^2 " less than " 89a^3 - 64a^2 + 6a + 16 ?

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  5. How much is y^4 - 12y^2 + y + 14 " greater than " 17y^3 + 34y^2 -51y +...

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  6. How much does 93p^2 - 55p+ 4 " exceed " 13p^3 - 5p^2 + 17p - 90 ?

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  7. To what expression must 99x^3 - 33x^2 - 13x - 41 be added to make the ...

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  8. Subtract 9a^2 - 15a + 3 from unity.

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  9. Find the values of the following polynomials at a = -2 and b = 3 : ...

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  10. Find the values of the following polynomials at a = -2 and b = 3 : a...

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  11. Find the values of the following polynomials at a = -2 and b = 3 : a...

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  12. Find the values of the following polynomials at a = -2 and b = 3 : a...

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  13. Find the values of the following polynomials at a = -2 and b = 3 : (...

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  14. Find the values of the following polynomials at a = -2 and b = 3 : ...

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  15. Find the values of the following polynomials at a = -2 and b = 3 : a...

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  16. Find the values of the following polynomials at a = -2 and b = 3 : a...

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  17. Find the values of following polynomials at m = 1, n= -1 and p = 2 : ...

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  18. Find the values of following polynomials at m = 1, n= -1 and p = 2 : ...

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  19. Find the values of following polynomials at m = 1, n= -1 and p = 2 : ...

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  20. Find the values of following polynomials at m = 1, n= -1 and p = 2 : ...

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