factorize, completely each of the following expression 1-4h^2

Question

factorize, completely each of the following expression
1-4h^2

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Jezebel 1 year 2021-09-04T11:01:14+00:00 1 Answers 8 views 0

Answers ( )

  1. Answer:

    (1 + 2h)(1 – 2h)

    Step-by-step explanation:

    [tex]1 – 4h^2 = 1 ^2 – (2h)^2[/tex]

              [tex]=(1 – 2h)(1 + 2h)[/tex]                       [tex][ \ a^2 – b^2 = (a – b)(a+b) \ ][/tex]

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )