3m^2n^4+12m^6n^7= 12x^3×y^2+24xy^3= (2x^2+7)^2= (3x-9)^2= (64x^2-25y^2)=
166
232
Ответы на вопрос:
1.3m^2n^4(1+4m^4n^3) 2.4x^4 +28x^2+49 3.9x^2 -54x +81=x^2 -6x +9 4.(8x-5y)(8x+5y)
3m²n⁴+12m⁶n⁷=3m²n⁴(1+4m⁴n³); 12x³y²+24xy³=12xy²(x²+2y); (2x²+7)²=4x⁴+28x²+49; (3x-9)²=9x²-54x+81; (64x²-25y²)=(8x-5y)(8x+5y)
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