x1 = 14+√201
x2 = 14-√201
Объяснение:
x²−5=28x
x²−5-28x=0
x²-28x-5=0
D=784+20 = 804
√804 = 2√201
x=(28±2√201)/2 = 14±√201
x1 = 14+√201
x2 = 14-√201
Объяснение:
x²−5=28x
x²−5-28x=0
x²-28x-5=0
D=784+20 = 804
√804 = 2√201
x=(28±2√201)/2 = 14±√201