Symbol
Problem
Subtract $9\times △$ $2$ from $4\times n_{2}$ Q.6 $-4\times y$ $①$ $-5\times 12$ $①$ $-6\times n_{2}$ $○$ $5\times n2$ $③$ $.$ $7$ Multiply $3y^{n}2,6\times n_{3y}$ and $-2\times n_{2y}n_{3}$ O $36\times n5y^{n}6$ $36\times y$ $○$ O $36\times n2y$ $36yx$ O $0ther:$