Answer:
hello. a= +2 and -2
Step-by-step explanation:
because it sais this two are similar so when x become 12 times so y should be the same so 3a2 equals with 12 so...
[tex]3 {a}^{2} = 12 \\ {a}^{2} = 4 \\ |a| = 2 \\ a = + - 2[/tex]
