Why might Carnegie and Rockefeller think economic competition was inefficient & wasteful?

Comments (4) on “Why might Carnegie and Rockefeller think economic competition was inefficient & wasteful?”

1. nope.

   explanation:

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2. answer

   [tex]x = \pm 2\sqrt{2} \: \: or \: \: x = \pm 1[/tex]

   explanation

   the given equation is

   [tex]{x}^{4} - 9 {x}^{2} + 8 = 0[/tex]

   we can rewrite this as:

   [tex]({x}^{2})^{2} - 9 {x}^{2} + 8 = 0[/tex]

   let

   [tex]u = {x}^{2}[/tex]

   then the equation becomes:

   [tex]{u}^{2} - 9 {u}^{2} + 8 = 0[/tex]

   the factors of 8 that sum up to -9 are {-1,-8}

   we split the middle term with these factors to obtain,

   [tex]{u}^{2} - u - 8u+ 8 = 0[/tex]

   we factor by grouping to obtain:

   [tex]u(u - 1) - 8(u - 1) = 0[/tex]

   [tex](u - 8)(u - 1) = 0[/tex]

   apply the zero product property to get:

   [tex]u - 8 = 0 \: \: or \: \: u - 1 = 0[/tex]

   [tex]u = 8 \: or \: u = 1[/tex]

   but

   [tex]u = {x}^{2}[/tex]

   [tex]{x}^{2} = 8 \: or \: {x}^{2} = 1[/tex]

   [tex]x = \pm \sqrt{8} \: \: or \: \: x = \pm \: \sqrt{ 1}[/tex]

   [tex]x = \pm 2\sqrt{2} \: \: or \: \: x = \pm 1[/tex]

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3. i think it’s a i hope that right : )

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4. they spoke the dravidian language. hope this , correct me if im wrong

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