x² + 9x - 11 = 0
x₁ + x₂ = - 9
x₁ * x₂ = - 11
x₁²x₂ + x₁x₂² = x₁x₂ * (x₁ + x₂) = - 11 * (- 9) = 99
х²+9x-11=0.
По Виета х₁+х₁=-9
х₁*х₂=-11
х₁²х₂+х₁х₂²=х₁*х₂*(х₁+х₂)=-11*(-9)=99
x² + 9x - 11 = 0
x₁ + x₂ = - 9
x₁ * x₂ = - 11
x₁²x₂ + x₁x₂² = x₁x₂ * (x₁ + x₂) = - 11 * (- 9) = 99
х²+9x-11=0.
По Виета х₁+х₁=-9
х₁*х₂=-11
х₁²х₂+х₁х₂²=х₁*х₂*(х₁+х₂)=-11*(-9)=99