x^2-14x+45=0,
Д=49-45=4, 2 корня
х=(7+2)/1=9
х=(7-2)/1=5
x^2-14x+45=(x-9)(x-5)
1. 6ab⁵ = -7
1) 3*6ab⁵ = 18ab⁵ = 3*(-7) = -21
2) (6ab⁵)² = 36a²b¹⁰ = (-7)² = 49; 36a²b¹⁰:6 = 6a²b¹⁰ = 49÷6 =
2.