Question

Y=2$Y^{2} +5X-3$

Answer 1

y = 2x² +5x -3

∆=b²-4ac=5²-4.2.(-3)=25+24=49=>√∆=7

x = -b±√∆/2a

x = -5±7/2.2

x' = -5+7/4 = 2/4 = 1/2 ✓

x" = -5-7/4 = -12/4 = -3 ✓