Step-by-step explanation:
m² -12 = m
m² = m + 12
m = 
Answer:
Nothing at allllllll
Step-by-step explanation:haha
Answer:
The 3rd one again
Step-by-step explanation:
(a+−2)(8
+−5a+3)
=(a)(8
)+(a)(−5a)+(a)(3)+(−2)(8
)+(−2)(−5a)+(−2)(3)
=8
−5
+3a−16
+10a−6
=8
−21
+13a−6
hope this helped:)