Mathematics, 19.05.2021 22:10 danielahchf

please help me complete these -5a^2+ 5a = (a – 1) and 18x^2 + 2x³ = (9 + x) I need to complete the blanks

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please help me complete these -5a^2+ 5a = (a – 1) and 18x^2 + 2x³ = (9 + x) I need to complete the b...