Question

15 + 5 15 minus 5 is equal to 225 - Dash​

Answer 1

Answer:

answer is 25

Step-by-step explanation:

(15 + 5)(15 - 5) = 225 - ___

(20)(10) = 225 - 25

200 = 200

Answer 2

(15+5) (15-5) = 225 - __

20 x 10 = 225 - __

200 = 225 - __

__ = 225 - 200 = 25


OR


(15+5) (15-5) = 225 - __

15^2 - 5^2 = 15^2 - __

- 5^2 = - __

__ = 5^2 = 25



Note that (a+b) (a-b) = a^2 - b^2




Hope this helps.