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Mathematics, 05.06.2021 14:00 shelbyann5502

(a) What must be added to 1 - 2x + 3x² to obtain 3 + 5x - 7x2? (b) What must be subtracted from -4m2 + 5m - 3 to obtain m2 – 3m?
(c) From the sum of 4b2 + 5bc, -2b2 - 2bc – 2z2 and 2bc + 4c?, subtract the sum of 5b²-c²and -3b²+2bc+c
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(a) What must be added to 1 - 2x + 3x² to obtain 3 + 5x - 7x2? (b) What must be subtracted from -4m...

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