6b2 – 7b + 3 и 7b2+4b – 2
1) сумма
6b² – 7b + 3 + (7b²+ 4b – 2) = 6b² – 7b + 3 + 7b²+ 4b – 2 = 13b² - 3b + 1
2) разность
6b² – 7b + 3 - (7b²+ 4b – 2) = 6b² – 7b + 3 - 7b² - 4b + 2 = - b² - 11b + 5
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
6b2 – 7b + 3 и 7b2+4b – 2
1) сумма
6b² – 7b + 3 + (7b²+ 4b – 2) = 6b² – 7b + 3 + 7b²+ 4b – 2 = 13b² - 3b + 1
2) разность
6b² – 7b + 3 - (7b²+ 4b – 2) = 6b² – 7b + 3 - 7b² - 4b + 2 = - b² - 11b + 5
a = 3
A = 5a – 1, B = 2a – 3
M = 4a, N = 2a