Предмет: Алгебра, автор: snsn00

Решите пожалуйста уравнения.

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Автор ответа: Bobdeb

Уравнения под буквой "а" - стыдно не знать...
1) t*(5t-4)=0 => t=0 и t=4/5
2) 10x^2+x-2=10x^2-3x+10 тогда
x-2=-3x+10 4x=12 x=3

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DISEASES OF THE MOUTH

The mouth, in which the preliminary process of digestion begins, has a number of functions to perform. A disturbance of any of these functions indicates the presence of disease in the mouth or at some distance, as in the stomach, and bowels. In the mouth the starchy portions of the diet are given their first digestion. The absence of a number of teeth or the presence of bad teeth may disturb the preparation of food affecting the process of digestion in the mouth as well as in the stomach.

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The lesion may be of local origin or it may be a symptomatic expression of general disease.

Simple Stomatitis. The mucous membrane of the oral cavity being inflamed, it becomes sensitive and red. Often the tongue and pharynx are involved. The temperature may rise very high, especially in children.

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Chemical Stomatitis. Under the term «chemical stomatitis* certain industrial diseases come, such as phosphorous and lead poisoning.

The phosphorous stomatitis starts with a painful inflammation of the soft tissues and later causes necrosis of the jaws.

In lead poisoning the gums look rather anaemic, the gingiva showing the typical narrow band of dark blue colour.

Acute Herpetic Stomatitis is the manifestations of clinically apparent primary herpes simplex characterized by regional lymphadenopathy, sore throat, and high temperature, followed by localized itching and burning, with the formation of small vesicles of an erythematous base that give way to plaques and then painful herpetic ulcers. The gingivae are swollen and erythematous, and they bleed easily. Manifestations subside in 7 to 10 days, and recovery usually occurs within 2 weeks.

Aphtous Stomatitis refers to recurrent ulcers of the mouth that appear to be the same clinically as herpetic ulcers and for that reason have been considered to be a manifestation of recurrent herpes simplex, although the herpesvirus has never been conclusively isolated from recurrent aphthae.

Gangrenous Stomatitis is a destruction of large masses of the oral tissues, particularly the cheek. It usually is found in weakened patients with very low resistance to infection because of lowered white blood cell count or other causes. In advanced stages a large segment of the cheek may be lost, leaving the teeth visible through the defect.

Herpetic Stomatitis is an oral manifestation of primary herpes simplex infection. The term also is used by some for herpetiform ulcers considered to be oral manifestations of secondary or recurrent herpes simplex.

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Nicotinic Stomatitis is an inflammation of the palatal minor salivary ducts caused by irritation by tobacco smoke or hot fluids and characterized by raised small palatal lesions with red centers and white borders. The palatal mucosa usually has a generalized keratosis accompanying the smaller lesions. Also called stomatitis nicotina.

Stomatitis Venenata is an inflammation of the oral mucosa as the result of contact allergy. The most common causative agents are mouthwashes, denture powders, and topical anesthetics. Possible manifestations include erythema, angioneurotic edema, burning sensations, ulcerations, and vesicles.

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