SOLVE THIS with solution

Dear friend, the question image seems to be blank. Kindly repost the clear question so that anyone might help.
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a^2+b^2=a^2+b^2+2ab Example =300^2+10^2=90000+100+2×300×10 =90000+100+6000 =96100
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there is no image
 
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a^3+b^3=(a+b)(a^2-ab+b^2)and a^3-b^3=(a-b)(a^2+ab+b^2)
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(x3+y3)(x6-x3y3+y6)+(x9-Y9)
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What question
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