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Simplify each of the products: (x/2-2/5)...

Simplify each of the products: `(x/2-2/5)(2/5-x/2)-x^2+2x`

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RD SHARMA ENGLISH-ALGEBRAIC IDENTITIES-All Questions
  1. Simplify each of the products: (1/2a-3b)(3b+1/2a)(1/4a^2+9b^2)

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  2. Simplify each of the products: (m+n/7)^3\ (m-n/7)

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  3. Simplify each of the products: (x/2-2/5)(2/5-x/2)-x^2+2x

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  4. Simplify each of the products: (x^2+x-2)(x^2-x+2)

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  5. Simplify each of the products: (x^3-3x^2-x)(x^2-3x+1)

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  6. Simplify each of the products: (2x^4-4x^2+1)(2x^4-4x^2-1)

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  7. Prove that a^2+b^2+c^2-a b-b c-c a is always non-negative for all valu...

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  8. Write the following in expanded form: (9x+2y+z)^2 (ii) (3x+2y-z)^2...

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  9. Write the following in expanded form: (i)(9x+2y+z)^2 (ii) (3x+2y-...

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  10. Write the following in expanded form: (i)(1/4a-1/2b+1)^2 (ii) (-2...

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  11. Simplify: (a+b+c)^2+\ (a-b-c)^2

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  12. Simplify: (a+b+c)^2-(a-b-c)^2

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  13. If a^2+b^2+c^2=20 and a+b+c=0 , find a b+b c+c a

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  14. If a+b+c=9 and a b+b c+c a=40 , find a^2+b^2+c^2

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  15. If a^2+b^2+c^2=250 and a b+b c+c a=3 , find a+b+c

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  16. Write the following in the expanded form: (i)(a+2b+c)^2 (ii) (2a-...

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  17. Write the following in the expanded form: (-3x+y+z)^2 (ii) (m+2n-5...

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  18. Write the following in the expanded form: (i)(2+x-2y)^2 (ii) (a^2...

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  19. Write the following in the expanded form: (i)(a b+b c+c a)^2 (ii)...

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  20. Write the following in the expanded form: (x+2y+4z)^2

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