Question

5. (a) Add: P (P-q), q (q-r) and r(r-p) (b) Add: 2x (2 - x - y) and 2y (z - y - x) (c) Subtract: 31 (1 – 4 m + 5 n) from 41 (10 n-3 m +21) (d) Subtract: 3a (a + b + c)-2 b (a - b + c) from 4c ( - a + b + c) ​

Answer 1

Answer:

a) p^2 - pq - qr + q^2 - qr + r^2

b) -2x^2 - 4xy + 4x - 2y^2 + 2yz

c) m + 255n + 830

d) -3a^2 - 5ab - 7ac + 2b^2 + 2bc + 4c^2