e) x²-64 = 0
x² = 64
x = +-√64
x = +-8
x' = -8
x" = +8
S = {-8,+8}
f) -4x²+28x =
-4x(x-7) = 0
-4x = 0
x' = 0
x-7 = 0
x" = 7
S = {0,7}
g) x²+x = 0
x(x+1) = 0
x+1 = 0
x" = -2
S = {-2,0}
28/09/22
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e) x²-64 = 0
x² = 64
x = +-√64
x = +-8
x' = -8
x" = +8
S = {-8,+8}
f) -4x²+28x =
-4x(x-7) = 0
-4x = 0
x' = 0
x-7 = 0
x" = 7
S = {0,7}
g) x²+x = 0
x(x+1) = 0
x' = 0
x+1 = 0
x" = -2
S = {-2,0}
❤️❤️ Feito
28/09/22
Me ajuda na A, B, C e D fazendo favor?
A: X^2-12X=0
B: X^2-1=0
C: X^2-
D: 5X^2-3X=0