How to start these problems
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(1)volume of cuboid =3x²-12x
=3x(x-4)
volume of a cuboid = lbh
so possible expressions are
l=3,b=x,h=(x-4)
l=x,b=3,h= (x-4)
l=(x-4),b=3,h=x
l=x,b=(x-4),h=3
similarly (2)
=3x(x-4)
volume of a cuboid = lbh
so possible expressions are
l=3,b=x,h=(x-4)
l=x,b=3,h= (x-4)
l=(x-4),b=3,h=x
l=x,b=(x-4),h=3
similarly (2)
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