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Use the identity `(x + a) (x + b) = x^2 + (a + b) x + ab` to find the following products: (xyz – 4) (xyz – 2)

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SWAN PUBLICATION-ALGEBRAIC EXPRESSIONS AND IDENTITIES -EXERCISE 9.5
  1. Use the identity (x + a) (x + b) = x^2 + (a + b) x + ab to find the fo...

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  2. Use the identity (x + a) (x + b) = x^2 + (a + b) x + ab to find the fo...

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  3. Use the identity (x + a) (x + b) = x^2 + (a + b) x + ab to find the fo...

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  4. Find the following squares by using the identities : (b – 7)^2

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  5. Find the following squares by using the identities : (xy + 3z)^2

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  6. Find the following squares by using the identities : (6x^2– 5y)^2

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  7. Find the following squares by using the identities : (2/3m+3/2n)^2

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  8. Find the following squares by using the identities : (0.4p – 0.5q)^2

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  9. Find the following squares by using the identities : (2xy + 5y)^2

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  10. Simplify : (a ^(2) +b ^(2)) ^(2)

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  11. Simplify : (2x + 5)^2 – (2x – 5)^2

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  12. Simplify : (7m – 8n)^2 + (7m + 8n)^2

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  13. Simplify : (4m + 5n)^2 + (5m + 4n)^2

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  14. Simplify : (2.5 p - 1 5q ) ^(2) - ( 1. 5 p - 2. 5 q ) ^(2)

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  15. Simplify : (ab + bc)^2 – 2ab^2c

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  16. Simplify : (m^2 – n^2m)^2 + 2m^3n^2

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  17. Show that: (3x + 7)^2 – 84x = (3x – 7)^2

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  18. Show that: (9p – 5q)^2 + 180pq = (9p + 5q)^2

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  19. Show that: (4/3m-3/4n)^2 +2mn=(16)/9m^2+9/16n^2

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  20. Show that: (4pq + 3q)^2 – (4pq – 3q)^2 = 48pq^2

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