Question

expand (9-12p)(9+12p)​

Answer 1

Answer:

(

9

−

1

2

)

(

9

+

1

2

)

({\color{#c92786}{9-12p}})(9+12p)

(9−12p)(9+12p)

(

−

1

2

+

9

)

(

9

+

1

2

)

Answer 2

To find :

(9-12p)(9+12p)

Solution:

$it \: is \: in \: the \: form \: of \: \\ (a + b)(a - b) = {a}^{2} - {b }^{2} \\ (9 - 12p)(9 + 12p) = {9}^{2} - {12p}^{2} \\ = 81 - 144 {p}^{2} \\ {p}^{2} = \frac{ - 81}{ - 144} \\ p = \sqrt{ \frac{81}{144} } \\ p = \frac{9}{12} \\ p = \frac{3}{4}$