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(a) Add: p(p-q), q(q-r) and r(r-p) (...

(a) Add: `p(p-q), q(q-r) and r(r-p)` (l) add: `2x(z-x-y) and 2y(z-y-x)` (w) Subtract: `3l(l-4m+5n) from 4l(10n-3m+2l)` (ii) (d) Subtract: `3a(a+b+c)-2b(a-b+c) from 4c(-a+b+c)`

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Let's solve the given problems step by step. ### Part (a): Add \( p(p - q), q(q - r), \) and \( r(r - p) \) 1. **Expand each expression:** - \( p(p - q) = p^2 - pq \) - \( q(q - r) = q^2 - qr \) - \( r(r - p) = r^2 - rp \) ...
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