139 Вправа 139Алгебра 8 клас Бевз 2025 · § 3 · стор. 31

139. Розклади на множники.

а) ${\displaystyle 6x^2-6y^2=}$${\displaystyle 6(x^2-y^2)=}$${\displaystyle 6\left(x-y\right)\left(x+y\right)}$;

б) ${\displaystyle 5-5m^2=}$${\displaystyle 5(1-m^2)=}$${\displaystyle 5\left(1-m\right)\left(1+m\right)}$;

в) ${\displaystyle a{x}^2-a^3=}$${\displaystyle a(x^2-a^2)=}$${\displaystyle a\left(x-a\right)\left(x+a\right)}$;

г) ${\displaystyle 3x^4-12x^2=}$${\displaystyle 3x^2(x^2-4)=}$${\displaystyle 3x^2\left(x-2\right)\left(x+2\right)}$.