Ответ:
5х × (6х - 7) - (3х - 2) × (4х + 8) =
= 30х² - 30х - 12х² - 24х + 8х + 16 =
= 18х² - 46х + 16
5х×(6х-7)-(3х-2)×(4х+8)=30х²-30х-12х²-24х+8х+16=18х²-46х+16
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Ответ:
5х × (6х - 7) - (3х - 2) × (4х + 8) =
= 30х² - 30х - 12х² - 24х + 8х + 16 =
= 18х² - 46х + 16
5х×(6х-7)-(3х-2)×(4х+8)=30х²-30х-12х²-24х+8х+16=18х²-46х+16