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Evaluate the following products with out...

Evaluate the following products with out actual multiplication : `30.5 xx 29.5`.

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VGS PUBLICATION-BRILLIANT-POLYNOMIAL AND FACTORIISATION-EXERCISE
  1. Evaluate the following products without actual multiplication. 50 1/2 ...

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  2. Evaluate the following products with out actual multiplication : 501 x...

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  3. Evaluate the following products with out actual multiplication : 30.5 ...

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  4. Factorise the following using appropri ate identities : 16x^2 + 24xy +...

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  5. Factorise the following using appropri ate identities : 4y^2 - 4y + 1.

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  6. Factorise the following using appropri ate identities : 4x^2-y^2/25.

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  7. Factorise the following using appropri ate identities : 18a^2- 50.

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  8. Factorise the following using appropri ate identities : x^2 + 5x + 6.

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  9. Factorise the following using appropriate identities. 3p^2-24p+36

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  10. Expand of the following, using suitable identities.(x + 2y + 4z)^2

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  11. Expand of the following, using suitable identities : (2a - 3b)^3.

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  12. Expand of the following, using suitable identities : (-2a+5b-3c)^2.

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  13. Expand each of the following using suitable Identities. [a/4-b/2+1]^2

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  14. Expand of the following, using suitable identities : (p + 1)^3.

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  15. Expand of the following, using suitable identities :(x-(2/3)y)^3.

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  16. Factorise : 25x^2 + 16y^2 + 42^2 - 40xy + 16yz -20xz.

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  17. Factorise : 9a^2 + 4b^2+ 16c^2+12ab16bc -24ca.

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  18. If a+b+c=9 and ab + bc + ca = 26, find a^2 + b^2 +c^2.

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  19. Evaluate the following using suitable identities : (99)^3.

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  20. Evaluate the following using suitable identities : (102)^3.

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