Question

81 x^2 - 49 find the answer ​

Answer 1

Answer:

81x²-49

9x²-7²

(9x+7)(9x-7)

Answer 2

Answer:

Use the sum-product pattern

8

1

2

−

4

9

8

1

2

+

6

3

−

6

3

−

4

9

2

Common factor from the two pairs

8

1

2

+

6

3

−

6

3

−

4

9

9

(

9

+

7

)

−

7

(

9

+

7

)

3

Rewrite in factored form

9

(

9

+

7

)

−

7

(

9

+

7

)

(

9

−

7

)

(

9

+

7

)

Solution

(

9

−

7

)

(

9

+

7

)