Відповідь:
a) 7(x-y) - 3(2x - 3y) = 7x - 7y - 6x + 9y = x + 2y.
б) -3(4-y) + 2(y-4) = -12 + 3y + 2y - 8 = 5y - 20.
в) 5a(a-3) - a(a - 6) = 5a² - 15a - a² + 6a = 4a² - 9a.
г) 10(x-2y) - 5(x + y) = 10x - 20y - 5x - 5y = 5x - 25y.
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Відповідь:
a) 7(x-y) - 3(2x - 3y) = 7x - 7y - 6x + 9y = x + 2y.
б) -3(4-y) + 2(y-4) = -12 + 3y + 2y - 8 = 5y - 20.
в) 5a(a-3) - a(a - 6) = 5a² - 15a - a² + 6a = 4a² - 9a.
г) 10(x-2y) - 5(x + y) = 10x - 20y - 5x - 5y = 5x - 25y.