Question

3. Simplify the following combining like terms:
(i) 21b-32 + 7b - 20b
(ii) 12m2 - 9m + 5m - 4m2 - 7m + 10
(iii) -z2 + 13z2 - 5z + 7z3 - 15z
(iv) 5x2y - 5x2 + 3yx2 – 3y2 + x2 - y2 + 8xy2 – 3y2
(v) p - (p - 9) - (q- p) - 9
(vi) 3a - 2b - ab - (a - b + ab) + 3ab + b - a
(vii) (3y2 + 5y - 4) - (8y - y2 - 4)​
pls answer fast this is urgent

Answer 1

Step-by-step explanation:

hope it helps uhhh dear mate ....

.