Question

FACTORIZE cada um dos seguintes.

Answer 1

a) 400 = 20^2

k^2-20^2

= (k+20)(k-20)

b) (esse vc decora)

(x+y)(x-y)

c) 121 == 11^2

(11+a)(11-a)

d) (t+1)(t-1)

e) 1/4 = (1/2)^2

(z+1/2)(z-1/2)

f) 9/25 = (3/5)^2 e x^2/4 = (x/2)^2

(3/5 + x/2)(3/5-x/2)

g) 64n^2 = (8n)^2 e 49t^2 = (7t)^2

(8n+7t)(8n-7t)

h) 36 = 6^2

( (2x-4) +6)( (2x-4) -6)

(2x+2)(2x-10)