Объяснение:
x² + 5х + 4 = х² + 4х + х + 4 =
х * (х + 4) + х + 4 = (х + 4)*(х + 1)
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Объяснение:
x² + 5х + 4 = х² + 4х + х + 4 =
х * (х + 4) + х + 4 = (х + 4)*(х + 1)