(х-3)^2-49х^2 =0 Плиз

Question

(х-3)^2-49х^2 =0 Плиз

Answer 1

X²-6x+9-49x²=0
-48x²-6x+9=0
-16x²-2x+3=0
D=-2²-4*3*-16=4+192=196=14²
x1=2+14/-16=16/-16=-1
x2=2-14/-16=-12/-16=3/4=0.75