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Add the following expressions: ab + bc...

Add the following expressions:
`ab + bc + ca and - bc - ca- ab`

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Add the following expressions: a^2 + 3 ab-bc, b^2 + 3bc - ca and c^2 + 3ca - ab

Add the following: 4ab – 5bc + 7ca, –3ab + 2bc – 3ca, 5ab – 3bc + 4ca

Solve the following: (a + b + c)(ab + bc + ca) - abc = ?

If a+b-c = 12 and a^2+b^2+c^2=110 , then which among the following relations is true ? यदि a+b-c = 12 और a^2+b^2+c^2=110 है, तो निम्न में से कौन सा संबंध सही है ? (p) ab+bc+ca = 3 (q)ab+bc-ca = 17 (r) ab-bc+ca = 17 (s) ab-bc-ca = 17

Choose the correct answer from the following : The value of |{:(bc,-c^2,ca),(ab,ac,-a^(2)),(-b^2,bc,ab):}|is:

NCERT EXEMPLAR-ALGEBRAIC EXPRESSIONS-Exercise
  1. Add the following expressions: p^2 - 7pq - q^2 and - 3p^2-2pq + 7q^2

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  2. Add the following expressions: x^3 - x^2y - xy^2 - y^3 and x^3-2x^2y...

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  3. Add the following expressions: ab + bc + ca and - bc - ca- ab

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  4. Add the following expressions: p^2-q +r, q^2 -r+ p and r^2-p+q

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  5. Add the following expressions: x^3y^2 + x^2y^3 +3y^4 and x^4 + 3x^2...

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  6. Add the following expressions: p^2qr + pq^2r + pqr^2 and - 3pq^2r -...

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  7. Add the following expressions: uv - vw, vw - wu and wu - uv

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  8. Add the following expressions: a^2 + 3 ab-bc, b^2 + 3bc - ca and c^2...

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  9. Add the following expressions: 5/8 p^4 +2p^2 + 5/8 , 1/8 - 17 p + 9/...

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  10. Add the following expressions: t-t^2-t^3-14,15t^3+13+9t-8t^2,12t^2-1...

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  11. Subtract - 7p^2qr from - 3p^2qr

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  12. Subtract -a^2-ab " from " b^2 +ab.

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  13. Subtract -4x^2y-y^3 " from " x^3 +3xy^2-x^2y.

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  14. Subtract x^4+3x^3y^3+5y^4 " from " 2x^4-x^3y^3+7y^4.

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  15. Subtract ab-bc-ca " from " -ab+bc+ca.

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  16. Subtract -2a^2-2b^2 " from " -a^2-b^2+2ab.

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  17. Subtract x^3y^2+3x^2y^3-7xy^3 " from " x^4+y^4+3x^2y^2-xy^3.

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  18. Subtract 2(ab+bc+ca) " from " -ab-bc-ca.

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  19. Subtract 4.5x^5-3.4x^2+5.7 " from " 5x^4-3.2x^2-7.3x.

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  20. Subtract 11-15y^2 " from " y^3-15y^2-y-11.

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