find the product of this question
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where is the question.....???.
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4st(s-t)-6s^2(t-t^2)-3t^2(2s^2-s)+2st(s-t)
=4s^2t-4st^2-6s^2t+6s^2t^2-6t^2s^2+3st^2+2s^2t-2st^2{In this step 4s^2t-6s^2t+6s^2t^2+2s^2t remains 0}
=(-4st^2+3st^2-2st^2)
=-3st^2
=4s^2t-4st^2-6s^2t+6s^2t^2-6t^2s^2+3st^2+2s^2t-2st^2{In this step 4s^2t-6s^2t+6s^2t^2+2s^2t remains 0}
=(-4st^2+3st^2-2st^2)
=-3st^2
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rifa9:
it is not looking clear
Is it clear
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