Question

1.) Add:p(p - p),q(q - r) and r (r -p )
2.) Add:2x(z- x- y) and 2y(z- y - x)
3.) subtract: 31 (1-4m+5n) from 41 (10n-3m+ 21)
4.) subtract: 3a (a+ b+ c) from 4c (- a +b+c).
please it's urgent
please help me​

Answer 1

hope it will help you always be positive and happy