Question

во вложениях...срочно надо

Answer 1

2x²-9x+9=2(x-x₁)(x-x₂)=2(x-3)(x-(3/2))=(x-3)(2x-3)
2x²-9x+9=0
D=81-4*2*9=81-72=9=3²
x₁=(9+3)=2*2=3
x₂=(9-3)/4=3/2