Question

necesito ayuda pls


( 2X +1 ) ( 2X – 1) =
(-y +0.4 ) ( -y – o.4) =
c) ( 2w +0.6 ) ( 2w – 0.6) =
d) ( X +1 ) ( -X + 1) =
e) ( z +5 ) ( -z + 5) =
f) ( 2a – 3b ) ( -3b – 2a) =
g) ( m2 +n ) ( -n + m2) =
h) ( 8 - t ) ( 8 + t) =
i) ( r – 1/2 ) ( 1⁄2 + r) =
j) ( 1/x2 – z/3 ) ( - z/3 – 1/x2) =

Answer 1

Respuesta:

( 2X +1 ) ( 2X – 1) = -4

(-y +0.4 ) ( -y – o.4) =  -0.16

c) ( 2w +0.6 ) ( 2w – 0.6) =3.64

d) ( X +1 ) ( -X + 1) =1

e) ( z +5 ) ( -z + 5) =-25

f) ( 2a – 3b ) ( -3b – 2a) =5

g) ( m2 +n ) ( -n + m2) =-4

h) ( 8 - t ) ( 8 + t) =64

i) ( r – 1/2 )  ( -0.5

( r – 1/2 ) ( 1⁄2 + r) =-6

j) ( 1/x=2 – z/3 ) ( - z/3 – 1/x2) =?

Explicación paso a paso: