А) -80m-20m²-1,25m³=-1,25m(64+16m+m²)= -1,25m(8+m)²
Б)-9x²-6xy+49-y²=-1( 9x²+6xy+y²-49)= -1( (3x)²+6xy+y²-49)=
=-1( 3x+y)²-7²)= -1( 3x+y-7)* ( 3x+y+7)
В)63p³+48p²+12p+1= нельзя
Г)625y⁴-81x⁴+26y²-9x²=(625y⁴-81x⁴)+(26y²-9x²)=
=(25y²-9x²)*(25y²+9x²) +1(25y²-9x²)=(25y²-9x²)(25y²+9x²+1)=
=(5y-3x)(5y+3x)(25y²+9x²+1)
Copyright © 2025 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
А) -80m-20m²-1,25m³=-1,25m(64+16m+m²)= -1,25m(8+m)²
Б)-9x²-6xy+49-y²=-1( 9x²+6xy+y²-49)= -1( (3x)²+6xy+y²-49)=
=-1( 3x+y)²-7²)= -1( 3x+y-7)* ( 3x+y+7)
В)63p³+48p²+12p+1= нельзя
Г)625y⁴-81x⁴+26y²-9x²=(625y⁴-81x⁴)+(26y²-9x²)=
=(25y²-9x²)*(25y²+9x²) +1(25y²-9x²)=(25y²-9x²)(25y²+9x²+1)=
=(5y-3x)(5y+3x)(25y²+9x²+1)