Question

Whats that symbol in this math and what will be the answer​

Answer 1

Answer:

(r-7)(r-3)

Step-by-step explanation:

i don't know which symbol ur talking about....that's the place where you are supposed to select the option

plz mark me as the brainliest

Answer 2

Answer:

^ means squarning of that number.

ex:3^=9

r^2-10r+21

r^2-(7+3)r+21

r^2-7r-3r+21

r(r-7)-3(r+7)

(r-7)(r-3)

and the option is C.