Question

factories x²+x²-4x-4​

Answer 1

Answer:

x²+x²-4x-4

= x²(1+1)-4(x+1)

Answer 2

Answer:

(x+2)^2

Step-by-step explanation:

x^4+4x+4

x^2+2×x×2+2^2

it is in the form of a^2+2ab×b^2

identity is (a+b)^2

and answer is

(x+2)^2