Simplify the polynomials: 8a·20b^2–0.8b·4b^2–20ab·2b+b·3b^2–1

  8a·20b^2–0.8b·4b^2–20ab·2b+b·3b^2–1

  the simplified form

  8a·20b^2–0.8b·4b^2–20ab·2b+b·3b^2–1

  = b^3(-0.8·4 +3) +ab^2(8·20 -20·2) -1 . . . . . group like terms

  = -0.2b^3 +120ab^2 -1 . . . . . the simplified form

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i think the answer is d im not sure