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01-11-2014
Mathematics

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select difference of (8x2-3x3) - (2x2-5x3)

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01-11-2014

(8x2-3x3) - (2x2-5x3)
= (16-9)-(4-15)
=7-(-11)
=7+11
=18

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olemakpadu olemakpadu

01-11-2014

(8x^2 - 3x^3) - (2x^2 - 5x^3)

= 8x^2 - 3x^3 - 2x^2 + 5x^3.

= 8x^2 - 2x^2 + 5x^3 - 3x^3. Simplify together like terms.

= 6x^2 + 2x^3

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