Subtract the sum of 3 x2-5x and - x2 + 2x +5 from the sum of
4 +3x and 5 – 4x +2x2.
(b) Simplify (5 x2+3x-2) – (2 x2-7x-8) + (x2+9)
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simple,
22 is the correct answer.
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