Question

32= (x + 1)  (x - 3)  resolva pela forma de báscara 

Answer 1

32=(x+1)(x-3)
x²- 3x + x -3=32
x² - 2x -3 - 32 =0
x² - 2x - 35 =0
Δ=b² - 4ac
Δ=4 - 4 . 1.(-35)
Δ=4 . 140
Δ= 144

 x=(-b±√Δ) /2a 
x=2±√144 /2
x=2±12 /2
x1= 2 + 12/2= 7
x2=2-12/2 = 5