解不等式 log1/2(3x2-2x-5)≤log1/2(4x2 x-5)
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解不等式log1/2(3x2-2x-5)≤log1/2(4x2x-5)解不等式log1/2(3x2-2x-5)≤log1/2(4x2x-5)解不等式log1/2(3x2-2x-5)≤log1/2(4x
解不等式 log1/2(3x2-2x-5)≤log1/2(4x2 x-5)
解不等式 log1/2(3x2-2x-5)≤log1/2(4x2 x-5)
解不等式 log1/2(3x2-2x-5)≤log1/2(4x2 x-5)
log1/2(3x2-2x-5)≤log1/2(4x2 +x-5)
∴3x2-2x-5>=4x2+x-5且3x2-2x-5>0,4x2+ x-5>0
解得-3