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2r²t + 3 s²t + 10r²t³ + 15s²t ³ = ( r² +3s ) ( + t )
2r²t + 3 s²t + 10r²t³ + 15s²t ³ = ( r² +3s ) ( + t )
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Объяснение:
2r²t + 3s²t + 10r²t³ + 15s²t³ =
t*(2r² + 3s² + 10r²t² + 15s²t²) =
t*(2r² + 3s² + 5t²*(2r² + 3s²)) =
t*(2r² + 3s²)(1 + 5t²)