若根号3x-y-1与|2x+y-4|互为相反数,求(3x+3×y的3次方)的立方根拜托各位大神
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若根号3x-y-1与|2x+y-4|互为相反数,求(3x+3×y的3次方)的立方根拜托各位大神
若根号3x-y-1与|2x+y-4|互为相反数,求(3x+3×y的3次方)的立方根拜托各位大神
若根号3x-y-1与|2x+y-4|互为相反数,求(3x+3×y的3次方)的立方根拜托各位大神
√(3x - y - 1) + | 2x + y - 4| = 0 ==> 3x-y-1=0 2x+y-4=0 ==> x = 1 y = 2 (3x + 3y^3)^(1/3) = (3 * 1 + 3 * 2^3)^(1/3) = (3 + 24)^(1/4) = 27^(1/3) = 3
根号3x-y-1与|2x+y-4|互为相反数 那么根号(3x-y-1)+|2x+y-4|=0 这是非负数和为0的情况 3x-y-1=0 2x+y-4=0 x=1 y=2 后面自己算吧 ,不懂可以追问
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