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A.
1² - ( 2 . 1 . -3 ) + 3.1
= 1 + 6 + 3
= 10
B.
-2² - ( 2 . 3 . 1 ) + 3 . -2
= 4 - 6 - 6
= -8
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( 2 ) a = 6
b = -1
A.
a² + 2ab + b²
= 6² + (2.6.-1) + (-1²)
= 36 - 12 + 1
= 25
B.
a²b - ab² +a²b²
= (6².-1) - ( 6 . -1²) + (6².-1²)
= -36 + 6 + 36
= 6
C.
2a + 2a²b² + 3ab² + b³
= ( 2 . 6 ) + (2.6².-1²) + (3.6.-1²) + (-1³)
= 12 + 72 + 18 - 1
= 101