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Mathematics

katkit25:

How do I add the opposite of (9x^2-4x+8)-(12x^2-6x-3) and (x-2x^3+8-7x^2)-(8+5x-3x^3)

1 month ago
Shadow:

What do you mean by 'opposite'

1 month ago
Shadow:

For adding these I think you just line up the like terms So x^2 can only be added with other x^2, x added with other x, and constants added with other constants (ex: 3 + 5).

1 month ago
katkit25:

I knnow hhow to solve it But i have no clues how to add the oppisite

1 month ago
Nnesha:

\[\rm (9x^2-4x+8) \large \color{red}{-}(12x^2-6x-3) \] which is same as \[\rm (9x^2-4x+8) \large \color{red}{-1}(12x^2-6x-3) \] 1st) distribute negative 1 2nd) combine like terms if the signs are opposite you will subtract.

1 month ago
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