if 2x-2/3x-2= 0 then prof that 8x³-2/3x³-16=0
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yes, I will help you
8x³- 8/27x³-16
=(2x)³-(2/3x)³-16
=(2x-2/3x)³+3.2x.2/3x(2x-2/3x)-16
=2³+4.2-16 [ °.° 2x-2/3x=2 ]
=8+8-16
=16-16
=0
proved
8x³- 8/27x³-16
=(2x)³-(2/3x)³-16
=(2x-2/3x)³+3.2x.2/3x(2x-2/3x)-16
=2³+4.2-16 [ °.° 2x-2/3x=2 ]
=8+8-16
=16-16
=0
proved
Anonymous:
thanks
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