Question

Resolva esta equação do 2° grau ×2-3×-10=0

Answer 1

×^2-3×-10=0

as raizes

x=5,\:x=-2

Answer 2

X=-(-3)±✓(-3)²-4.1.(-10)/2.1
X=3±✓9+40/2
X=3±✓49/2

X'=3+7/2
X'= 10/2
X'= 5

X"=3-7/2
X"=-4/2
X"= -2