Question

Решите уравнение:
x^2+3x-(1-2x^2)=3x^2-x+4

Answer 1

x^2+3x-1+2x^2-3x^2+x-4=0
4x=5
x=5/4

Answer 2

x^2+3x-1+2x^2=3x^2-x+4
x^2+3x+2x^2-3x^2+x=4+1
4x = 5
x = 5/4 = 1,25

Answer 3

не успела)