zhonibear8225 zhonibear8225

05-06-2018
Mathematics

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Find the sum: (3x2 + 5x − 8) + (5x2 − 13x − 5)

8x2 + 8x − 13
8x2 − 8x + 13
8x2 − 8x − 13
8x2 − x − 13

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SINAZEUS SINAZEUS

05-06-2018

the third one is true

good luck

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mathstudent55 mathstudent55

05-06-2018

(3x^2 + 5x − 8) + (5x^2 − 13x − 5)

3x^2 + 5x − 8
+ 5x^2 − 13x − 5
----------------------------
8x^2 - 8x - 13

The answer is choice C: 8x^2 − 8x − 13

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