factor the following using perfect square trinomial

4x² -16x +16​


Sagot :

4 (x-2) ² factor out 4 from the expression use a ²  -2 a b +b ² = (a-b) ²  

4 (x-2) ²

the answer is in bold letters

Answer:

4(x -2)²

Step-by-step explanation:

Common factor

4

2

1

6

+

1

6

4x^{2}-16x+16

4x2−16x+16

4

(

2

4

+

4

)

4(x^{2}-4x+4)

4(x2−4x+4)

2

Use the sum-product pattern

4

(

2

4

+

4

)

4(x^{2}{\color{#c92786}{-4x}}+4)

4(x2−4x+4)

4

(

2

2

2

+

4

)

4(x^{2}{\color{#c92786}{-2x}}{\color{#c92786}{-2x}}+4)

4(x2−2x−2x+4)

3

Common factor from the two pairs

4

(

2

2

2

+

4

)

4(x^{2}-2x-2x+4)

4(x2−2x−2x+4)

4

(

(

2

)

2

(

2

)

)

4(x(x-2)-2(x-2))

4(x(x−2)−2(x−2))

4

Rewrite in factored form

4

(

(

2

)

2

(

2

)

)

4(x(x-2)-2(x-2))

4(x(x−2)−2(x−2))

4

(

2

)

(

2

)

4(x-2)(x-2)

4(x−2)(x−2)

5

Combine to a square

4

(

2

)

(

2

)

4(x-2)(x-2)

4(x−2)(x−2)

4

(

2

)

2

yan na po