Question

PQ - 6
PR - 8
PS - 10
RS - 20
Q =

Answer 1

Answer:

6. Add the following.

ENTITIES

EXPRESSIONS

a. abc2 – 5ab²c, 4a²bc + 2a-b2c2, 3a²bc – 4abc?

b. xy + 2yz + 4xyz, yz – 3zx – xyz, 3xy – 2yz + 4zx

C. pq? – pq? – 6p9, -3pq3 – p²q + 2pq, 2pq? – 4p9

d. srt – 482p3 + 2r243, 352p3 + sr2t + 4r213

+9

7. Subtract:

a. 3x2 – 6xy + 4y2 from 9x2 – 3y2 + 3xy

b. 2ab – 4bc + ca – 5abc from 5ab + 5bc – Sca

+

c. p4 + 3p3 + 2p2 + p + 3 from 3p4 – 3p2 + p +6

d. xy2 – 3xy3 + 4x3y from 2x3y2 + 2xy3 – x?y2