Answer:
42
Step-by-step explanation:
The product of the prime factors of 1764 is
1764 = 2² × 3² × 7² , thus
=
= × ×
= 2 × 3 × 7
= 42
D
-2x+8.1y
+9x-5.3y
________
get the answer 7x+2.8y