Question

Find the following using identities:- (grade 8)

1) (173×(227)
2) (144)×(256)

Answer 1

(200-23)x(200+23)
200^2 - 23^2
40000-529
39471




(200-56)(200+56)
200^2-56^2
40000-3136
36864

Answer 2

Answer:

answer 39,271

Step-by-step explanation:

(173)×(227)

(a-b) ×(a +b)

(200-27)×(200+27)

(200)^(27)^

40,000 - 729

= 39,271