х(х+3) - (х+4)² = х² + 3х - (х² + 8х + 16) = х² + 3х - х² - 8х - 16 = - 5х - 16
Ответ: С)
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х(х+3) - (х+4)² = х² + 3х - (х² + 8х + 16) = х² + 3х - х² - 8х - 16 = - 5х - 16
Ответ: С)