bˆ(2a)-4(a)ˆb=121
50/100 or 5/10
bˆ(2a)-4(a)ˆb=49
factorize 2p+4q+6r
1
factorize 3p-15q
2(-1)^3
$3x_{2}$ -21
(9/($x-2)^{2}$)+(6/(x-2))
factorize 15y-12