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What should be taken away from 3x^2 – 4y...

What should be taken away from `3x^2 – 4y^2 + 5xy + 20` to obtain `– x^2 – y^2 + 6xy + 20`?

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PSEB-Algebraic Expressions-EXAMPLE
  1. What should be added to x^2 + xy + y^2 to obtain 2x^2 + 3xy?

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  2. What should be subtracted from 2a + 8b + 10 to get – 3a + 7b + 16?

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  3. What should be taken away from 3x^2 – 4y^2 + 5xy + 20 to obtain – x^2 ...

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  4. From the sum of 3x – y + 11 and – y – 11, subtract 3x – y – 11.

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  5. From the sum of 4 + 3x and 5 – 4x + 2x^2, subtract the sum of 3x^2 – 5...

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  6. Find the values of the following expressions for x = 2. x + 4

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  7. Find the values of the following expressions for x = 2. 4x – 3

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  8. Find the values of the following expressions for x = 2. 19 – 5x^2

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  9. Find the values of the following expressions for x = 2. 100 – 10x^3

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  10. Find the value of the following expressions when n = – 2. 5n – 2

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  11. Find the value of the following expressions when n = – 2. 5n^2 + 5n –...

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  12. Find the value of the following expressions when n = – 2. n^3 + 5n^2 +...

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  13. Find the value of the following expressions for a = 3, b = 2. a + b

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  14. Find the value of the following expressions for a = 3, b = 2. 7a – 4b

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  15. Find the value of the following expressions for a = 3, b = 2. a^2 + 2...

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  16. Find the value of the following expressions for a = 3, b = 2. a^3 – b^...

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  17. If m = 2, find the value of: m – 2

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  18. If m = 2, find the value of: 3m – 5

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  19. If m = 2, find the value of: 9 – 5m

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  20. If m = 2, find the value of: 3m^2 – 2m – 7

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