1) (a²+b²)³⠀ ⠀3) (2m²–3n²)³⠀ ⠀5) (4m³+5n²)³⠀⠀ ⠀7) (7u³―9v)³
2) (x²―y²)³⠀⠀4) (2a³―3b²)³⠀⠀ 6) (10p⁴―6q²)³⠀⠀ 8) (10x³+3y²)³
2) (x²―y²)³=(x^2+(-y^2))^3⠀=(x^2)^3+3*(x^2)^2*(-y^2)+3*x^2*(-y^2)^2+(-y^2)^3=x^6-3x^4y^2+3x^2y^4-y^6
3) (2m²–3n²)³⠀=(2m^2+(-3n^2))^3=(2m^2)^3+3*(2m^2)^2*(-3n^2)+3*2m^2*(-3n^2)^2+(-3n^2)^3=8m^6-24m^4n^2+54m^2n^4-27n^6
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4) (2a³―3b²)³=(2a^3+(-3b^2))^3=(2a^3)^3+3*(2a^3)^2*(-3b^2)+3*(2a^3)*(-3b^3)^2+(-3b^2)^3=8a^9-36a^6*b^2-54a^3b^4-27b^6