Question

Resolva as seguintes equações do 2º grau, extraindo raiz quadrada:
a) (x – 10)2 = 36
b) (x + 5)2 = 4
c) (2x – 3)2 = 49
d) (3x + 5)2 = 16
e) (x – 3)2 = –16
f) x2 – 8x + 16 = 4
g) x2 + 2x + 1 = 8​

Answer 1

answer:

a) $x = 28$

b) $x = - 3$

c) $x = 13.75$

d) $x = 1$

e) $x = 0$

g) $x = 1.75$

f) I don't now