Ai làm hộ mình với bài 3 với bài 4

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Ai làm hộ mình với bài 3 với bài 4
ai-lam-ho-minh-voi-bai-3-voi-bai-4

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Amity 4 years 2020-10-14T10:08:37+00:00 1 Answers 77 views 0

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  1. Edana
    0
    2020-10-14T10:09:59+00:00
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    Đáp án:

    B3)a)(1+2)3–22=(1+2).2–2.2.1+1=(1+2).(2–1)2=(1+2).|2–1|=(1+2)(2–1)=2–1=1c)(3–5)(10+2)3+5=12.(6–25)(5+1).23+5=12(5–1)2.(5+1)6+25=12(5–1)2.(5+1).(5+1)2=12.(5–1)2.(5+1).(5+1)=12(5–1)2.(5+1)2=12.(5–1)2=8B4)a)(32–23)2–(22–33)2=(32–23–22+33).(32–23+22–33)=(2+3)(52–53)=(2+3).(2–3).5=5.(2–3)=–5

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