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Mathematics, 29.10.2020 17:20 bloodmoonangel01

4. Simplify:
15x2 – 31x+14
49-25x?
9x2 - 4
10x2 +29x +21

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4. Simplify:
15x2 – 31x+14
49-25x?
9x2 - 4
10x2 +29x +21...

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