5. Раскройте скобки:
1) (5а - 6) ∙ 12
2) 7(5х – 6у + 7)
3) (2а + 5 – 3b) ∙ 14
1) (5а - 6) ∙ 12
2) 7(5х – 6у + 7)
3) (2а + 5 – 3b) ∙ 14
More Questions From This User See All
Copyright © 2025 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
2)7(5х-6у+7)= 7•5х-7•6у+7•7=35х-42у+49
3)(2а+5-3b)•14=2a•14+5•14-3b•14=28a+70-42b