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標題:

巳知公式P=一2(3b+4) 求P在下列各情況中的值

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發問:

(a)當b=0 (b)當= -2

最佳解答:

Given P = -2( 3b + 4 ) (a) When b = 0 P = -2[ 3( 0 ) + 4 ] P = -2( 4 ) P = -8 ===== (b) When b = -2 P = -2[ 3( -2 ) + 4 ] P = -2( -6 + 4 ) P = -2( -2 ) P = 4 ==== Hope I have helped you. (a) When b = 0 P = -2[ 3( 0 ) + 4 ] P = -2( 4 ) P = -8 =====

其他解答:

P=一2(3b+4) (a)當b=0 P=-2[3(0)+4] =-2(4) =-8 (b)當= -2 P=-2[3(-2)+4] =-2(-2) =4