can anyone tell me how to solve (k+1){1/3k(4k+11)+2(2k+5)}

i dont understand why the next step is 1/3(k+1) {4k2+23k + 30}

Hi Saarang, It would be better if you can post complete question because the step hereis not clear and is incorrect so assuming the first step, k+113k4k+11+22k+5=k+1134k2+11k+22k+5=k+134k2+11k+12k+30=k+134k2+23k+30and that is the required next step.

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