Question

-2x^2+7x-3=0 ???????????

Answer 1

-2x^2+7x-3=0 (-1) 2x^2-7x+3=0 a=2 b=-7 c=3 Delta: b^2-4ac Delta: (-7)^2-4.2.3 Delta: 49-24 Delta: 25 x=-b+/-raiz quadrada de delta/2a x=-(-7)+/-raiz quadrada de 25/2.2 x=7+/-5/4 x1=7+5/4=12/4=3 x2= 7-2/4=5/4