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Subtract 4a^(2) + 5b^(2) - 6c^(2) + 8 fr...

Subtract `4a^(2) + 5b^(2) - 6c^(2) + 8` from `2a^(2) -3b^(2) - 4c^(2) - 5`.

Answer

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Knowledge Check

  • If (2a- 1) ^(2) + (4b -3) ^(2) + (4c + 5) ^(2) = 0, then the value of (a ^(3) +b ^(3) + c ^(3) -3abc)/(a ^(2) + b ^(2) + c ^(2)) is :

    A
    `2 (3)/(8)`
    B
    `0`
    C
    `3 (6)/(8)`
    D
    `1 (3)/(8)`

  • If a^(2) + b^(2) + c^(2) = 2(a-b-c)-3 , then the value of 4a - 3b + 5c is

    A
    2
    B
    3
    C
    5
    D
    6

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