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The square of (-abc) is

Sagot :

It is read as a minus b minus c whole square. The (a - b - c)2 formula is expressed as (a - b - c)2 = a2 + b2 + c2 - 2ab + 2bc - 2ca.

We know

  • (ab)^m=a^mb^m

Now

[tex]\\ \sf\longmapsto (-abc)^2[/tex]

[tex]\\ \sf\longmapsto (-abc)(-abc)[/tex]

[tex]\\ \sf\longmapsto (-a)^2(b)^2(c)^2[/tex]

[tex]\\ \sf\longmapsto a^2+b^2+c^2[/tex]