(2×x/3 +4/1)(3x/2+6 /1)-(x/7-1/1)(x/7+1/1)
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Step-by-step explanation:
Given: (2×x/3+4/1)(3x/2+6/1)-(x/7-1/1)(x/7+1/1)
=(2x/3+4)(3x/2+6)-(x/7-1)(x/7+1)
=(x²+6x+4x+24)-{(x/7)^2-1}
=(x²+10x+24)-(x²/49-1)
=x⁴/49-x²+10x³/49-10x+24x²/49-24
=x⁴+10x³/49-25x²/49-10x-24
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