展开 (a+8)(a^'+3)

解答

展开

(a + 8) (a^{^{'}} + 3)

a^{1 +'} + 3 a + 8 a^{'} + 24

求解步骤

(a + 8) (a^{^{'}} + 3)

使用 FOIL 方法:

(a + b) (c + d) = a c + a d + b c + b d

a = a, b = 8, c = a^{^{'}}, d = 3

= a a^{^{^{'}}} + a \cdot 3 + 8 a^{^{^{'}}} + 8 \cdot 3

= a a^{^{^{'}}} + 3 a + 8 a^{^{^{'}}} + 8 \cdot 3

化简

a a^{^{'}} + 3 a + 8 a^{^{'}} + 8 \cdot 3 : a^{1 +^{'}} + 3 a + 8 a^{^{'}} + 24

= a^{1 +^{'}} + 3 a + 8 a^{^{'}} + 24

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