Question

conta exata de [x+1]ao quadrado-x+7

Answer 1

(x+1)²-x+7 

x²+2x+2-x+7=0

x²+x+9=0

Delta= 1-36
Delta= -35

x=-1+/-Raiz de -35/2

X1= 1+√-35/2

X2=1-√-35/2

Answer 2

(x+1)² - (x+7)
x² + 1² - x - 7=0
X² -x - 6=0
a)1
b)-1
c)-6
Δ= 1 -4.1.-6=
Δ= 25
x= 1-b+o- √Δ / 2.a      x1= 1+5/2= 3
x= 1+o- 5 / 2               x2= 1-5/2= -2