Question

Actividad 8: Resolver:

a) (x + 2)2 =
b)(a2 − b2)2=
c) (x + 4)
d) (2/3x − x2)2
e) (2a − 3)2=
f) (3a2 + b)3 =

Answer 1

A)(x+2)2= 2x+4

2x+4=0

2x=-4

x=-4/2

x=-2

B)(a2-b2)2= a4-b4= 4a-b4

4a=0

a=0

4a-b4=0

(0x4)-4b=0

-4b=0

b=0

C)(x+4)

x+4=0

x=-4

D)(2/3x-2x)2= 4/3x-4x

4/3x-4x=0

4/3x-12/3x=0/3

4x-12x=0

-8x=0

x=0

E)(2a-3)2= 4a-6

4a-6=0

4a=6

a=6/4

a=3/2

F)(3a2+b)3= (6a+b)3= 18a+3b

18a+3b=0

18a=3b

a=3b/18

a=b/6

b/6=0

b=0

a=0