8.
a) abc = (1)(2)(- 3) = - 6
b) b²pq = (2)²(- 2)(1) = (4)(- 2) = - 8
c) 3acq = 3(1)(- 3)(1) = (3)(- 3) = - 9
d) b²cp³ = (2)²(- 3)(- 2)³ = (4)(- 3)(- 8) = 96
e) bp³q² = (2)(- 2)³(1)² = (2)(- 8) = - 16
f) - 4abc = - 4(1)(2)(- 3) = 24
9.
P(- 3) = 2(- 3)⁴ - 3(- 3)² - 5(- 3) + 11
P(- 3) = 2(81) - 3(9) + 15 + 11
P(- 3) = 162 - 27 + 15
P(- 3) = 150
P(2) = 2(2)⁴ - 3(2)² - 5(2) + 11
P(2) = 2(16) - 3(4) - 10 + 11
P(2) = 32 - 12 + 1
P(2) = 21
E = 2P(- 3) - 3P(2)
E = 2(150) - 3(21)
E = 300 - 63
E = 237
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8.
a) abc = (1)(2)(- 3) = - 6
b) b²pq = (2)²(- 2)(1) = (4)(- 2) = - 8
c) 3acq = 3(1)(- 3)(1) = (3)(- 3) = - 9
d) b²cp³ = (2)²(- 3)(- 2)³ = (4)(- 3)(- 8) = 96
e) bp³q² = (2)(- 2)³(1)² = (2)(- 8) = - 16
f) - 4abc = - 4(1)(2)(- 3) = 24
9.
P(- 3) = 2(- 3)⁴ - 3(- 3)² - 5(- 3) + 11
P(- 3) = 2(81) - 3(9) + 15 + 11
P(- 3) = 162 - 27 + 15
P(- 3) = 150
P(2) = 2(2)⁴ - 3(2)² - 5(2) + 11
P(2) = 2(16) - 3(4) - 10 + 11
P(2) = 32 - 12 + 1
P(2) = 21
E = 2P(- 3) - 3P(2)
E = 2(150) - 3(21)
E = 300 - 63
E = 237