1)
a^4+20a²b²+100b^4 = (a²+10b²)²
2)
0,25a²+1,7a+2,89= (0,5a+1,7)²
3)
8xy-88y²=8y(x-11y)
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Answers & Comments
1)
a^4+20a²b²+100b^4 = (a²+10b²)²
2)
0,25a²+1,7a+2,89= (0,5a+1,7)²
3)
8xy-88y²=8y(x-11y)