Question

(7y+3)(7y-3) find product using distributive​

Answer 1

Answer:

y = 3/9

Step-by-step explanation:

(7y + 3) (7y -3)

$49y {}^{2} + 21y - 21y - 9$

$y {}^{2} = 9 \div 49$

$y = \sqrt{9 \div49 }$

y =3/7

Answer 2

Answer:

We multipy every digit to another

1. 14y
2. $4 9{y}^{2} - 21y + 21y - 9$

Now solve this by adding and subtracting

$49 {y}^{2} + 0y - 9$

The answer is

$49 {y}^{2} - 9$