Question

X+7).(x+5)
E polinomios pode me ajudar

Answer 1

(x+7).(x+5) aplicando a distributiva
x²+5x+7x+35=0
x²+12x+35=0
aplicando baskara
a=1 b=12 c=35
∆=144-4.35
∆=144-140=4

x'= -12+2/2=-5
x"=-12-2/2= 5