Question

(17m+9n)square -(17m-9
n)square​

Answer 1

${(17 m + 9n)}^{2} - {(17m - 9n)}^{2}$

use identity

${a}^{2} - {b}^{2} = (a + b)(a - b)$

We get

$(17m + 9n + 17m - 9n)(17m + 9n - 17m +9n )$

(34m)(18n)

612 mn

Answer 2

Step-by-step explanation:

⚡⚡ hope this'll help u✌✌