Question

A) X^ -4=0 (x cuadrada menos cuatro)
B) (c - 5)^ =144
C) 2x^ -8 =0
D) x^ + 2x =35
Ayudenme, es mi tarea!

Answer 1

a) x2-4 =0
x2 =4
x=+-2

b) (c-5)2 =144
c2 - 25 = 144
c2 169
c=13

c) 2x2-8=0
Sacando mitad a los coeficientes
x2 - 4=0
x2 =4
x= +-2

d) x2+2x = 35
Factorizando
x(x+2) = 35
x= 5
Comprobando
5(5+2) = 5×7 = 35