Mathematics, 27.08.2019 05:00 COOLIOMARIS

3x^2 + 6 - 2x + 5x - 4x^2 + 9
a. -x^2 + 3x + 15
b. 7x^2 + 3x + 3
c. x^2 - 3x + 15
d. -x^2 7x + 15

Answers: 1

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3x^2 + 6 - 2x + 5x - 4x^2 + 9
a. -x^2 + 3x + 15
b. 7x^2 + 3x + 3
c. x^2 - 3x + 15<...