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(iii) x²³ - xy + 7
(iv) x³ +7x²-5x+2
(vi)
7xy²
4. Evaluate each of the following expressions given that a = -2, b = 1 and c = 2.
3
(ii)
-a²b+-abc +5
4
(i) a³ + b³ + c³
3
(iii) 4a²b-:
-ab²+ = abc
the
alunom
(11) 4x² - 2xy + y²
2
-7
5
1
(iv)
c²-b³ + -a³
- b³ +²a³
find the degree and like terms: