Question

12a+17b)-(12a-17b) solve pleas with method​

Answer 1

(12a+17b)(-12a+17b)

we know binomial ×binomial

12a(-12a+17b)+17b(-12a+17b)

=

$- 144 {a}^{2} + 204ab - 204ba + 289 {b}^{2}$

here +204ab & -204ab will cancel

answer:

$- 144 {a}^{2} + 289 {b}^{2}$

Answer 2

Step-by-step explanation:

which is required ans.