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08-07-2018
Mathematics

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How much larger is the sum of 3x²-2x-8 and 4x²+2x-1 than the sum of 5x²-4x and 2x²-13x+4

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08-07-2018

That's

[tex]\left( (3x^2-2x-8)+(4x^2+2x-1) \right) - \left( (5x^2-4x)+(2x^2-13x+4) \right)[/tex]

[tex]= \left( 7x^2-9\right)-\left( 7x^2-17x+4 \right)[/tex]

[tex]=17x-13[/tex]

That much larger.

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