Answer:
23 x 4
=> 23 x (2 + 2)
=> 23 x 2 + 23 x 2
23 x 21
=> 23 x (3 x 7)
=> (23 x 3) x (23 x 7)
Step-by-step explanation:
(2*5^2)+4/3^2-5
(2*25)+4/3^2-5
50+4/3^2-5
50+1.7-5
46.7
for the first one
(x,y)=(4,1)