Question

$(x + y = 2 \\ (4xy = 3$
Sistema simples
ME AJUDEM ​

Answer 1

x² - Sx + P = 0

x² - 2x + 3/4 = 0 ===> *(4)

4x² -8x + 3 = 0

∆ = (-8)² -4.4.3= 64 -48= 16 => √∆=4

x = -b+√∆/2a = 8+4/8= 12/8 = 3/2 ✓

y = -b-√∆/2a = 8-4/8= 4/8 = 1/2 ✓