Question

(X+3)×(x+1) e encontre a b c

Answer 1

LOGO TEREMOS:
(X+3).(X+1)
(X.X)+(X.1)+(3.X)+(3.1)
X²+X+3X+3
X²+4X+3
A= 1
B= 4
C= 3
Δ=b²-4ac
Δ=16-4.1.3
Δ=16-12
Δ=4
x=-b+-√Δ/2a
x=-4+-2/2.1
x=-4+-2/2
x¹=-4+2/2
x¹=-2/2
x¹= -1
x²= -4-2/2
x²=-6/2
x²= -3