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Multiply: k + 3/4k - 2 × ( 12k^2 + 2k - 4)

Multiply: k + 3/4k - 2 × ( 12k^2 + 2k - 4)-example-1
User Joomler
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(k+3)/(4k-2)\cdot(12k^2+2k-4)=(k+3)/(4k-2)\cdot(12k^2-6k+8k-4}\\\\=(k+3)/(4k-2)\cdot[3k(4k-2)+2(4k-2)]=(k+3)/(4k-2)\cdot(4k-2)(3k+2)\\\\=(k+3)(3k+2)

User Walter Bright
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