Question

x
$x {}^{2} + 3x - 10 = 0$

Answer 1

Olá Kwtyy!

x²+3x-10=0

Δ=b²-4.a.c

Δ=3²-4.1.(-10)

Δ=9+40

Δ=49

x= -b±√Δ/2.a

x= -(3)±√49/2.1

x= -3±7/2

x¹=2

x²= -5

S { 2 e -5 }

Espero ter ajudado