(x- 1) 2？

fill up a vacancy

a^4

2a^2bc

b^2c^2=？

A: (A 2

bc)^2

(x-5)(x

2)

12=?

Answer: (x- 1)(x-2)

a^-2a=？

A: A (A -2)

b^2-b^4=？

Answer:

b^2( 1

b)( 1-b)

choose

What method is used for a 2-B 2 factorization?

1. Method of improving common factor

2. Grouping decomposition method

3. Formula method

(Answer 3)

x^2-6x

What is the final result of factoring?

1.(x-3)^2

2.

(x-6)^2

3.

(x^2-3)^2

(The answer is 1)

If xy-x 2-6x is converted by extracting the common factor, what is the common factor?

1.x

2.y

3.6 times

(The answer is 1)

Can (x-2) (x 2-2x-3) be further decomposed?

1. number

can

3. Yes, but it is not within the rational number.

(Answer 2)