Question

Ex. 21. Simplify:
789 x 789 789 +211 211 x 211
789 x 789-789x211 + 211x211
= ?​

Answer 1

789³+211³/789²-789(211)+211²

a³+b³/a-ab+b=a+b(a²-ab+b²)/a²-ab+b²

a+b

789+211

1000 answer

Answer 2

Step-by-step explanation:

$623143521 + 44732166479 - 166479 + 44521$

$45355310000 - 211000$

$45355099000$