(8r^2-7r-9) +(-r^2+r)=(8r
2
−7r−9)+(−r
2
+r)...
Mathematics, 24.09.2020 01:01 tabocampos1414
(8r^2-7r-9) +(-r^2+r)=(8r
2
−7r−9)+(−r
2
+r)
Answers: 2
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