Answer:
put the formula
(a-b) all square
Answer: Answer is x
Step-by-step explanation:
pp
40/21
-4/7+(-4/3)
common factor is 21
=21/7×-4-21/3×4
=3×-4-7×4 all divided by 21
=-12-28 all divided by 21
=40/21
-36
