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Multiply: (7x y+5y) by 3x y...

Multiply: `(7x y+5y)` by `3x y`

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RD SHARMA ENGLISH-ALGEBRAIC EXPRESSIONS AND IDENTITIES-All Questions
  1. Evaluate each of the that when x=2, y=-1. (3/5x^2y)xx(-(15)/4x y^2)xx...

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  2. Multiply: 2x by (3x+5y)

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  3. Multiply: (7x y+5y) by 3x y

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  4. Multiply: -(3a b^2)/5\ by ((2a)/3-b)

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  5. Find the product of 7/2s^2t\ a n d\ s+tdot Verify the result for s=1/2...

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  6. Multiply: (3x-4/5y^2x) b y 1/2x ydot

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  7. Find the following products: (a) 100 x(0. 01 x^4-0. 01 x^2) (b)121....

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  8. Determine each of the products and find the value of each for x=2,\ ...

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  9. Determine the product of z^2(x-y) and find the value if x=2,\ y=1. ...

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  10. Determine the product and find the value for x=2,\ y=1. 15 , z=0. 01...

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  11. Simplify the expressions and evaluate them as directed: (i)

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  12. Add : 5m\ (3-m)a n d\ 6m^2-13 m ...

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  13. Subtract 3p q\ (p-q) from 2p q\ (p+q)

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  14. Add: (i)p\ (p-q), q(q-r) and\ r\ (r-p) (ii)2x\ (z-x-y)\ and\ 2y\ (z...

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  15. Subtract: 3l\ (l-4m+5n) from 4l(10 n-3m+2l)

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  16. Subtract: 3a\ (a+b+c)-2b(a-b+c) from\ 4c(-a+b+c)

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  17. Simplify each of the expressions: 15 a^2-6a(a-2)+a(3+7a)

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  18. Simplify the following expression: x^2(1-3y^2)+x(x y^2-2x)-3y(y-4x^2y)

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  19. Simplify each of the following expressions: 4s t\ (s-t)-6s^2(t-t^2)-3t...

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  20. Find the following products: 2a^3(3a+5b) (ii) -11 a(3a+2b) (iii)-5a...

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