1)
1) 5a + 2a = 7a
2) 6b — 4b = 2b
3) 2x + 7x — 5x = 4x
2)
1) (5a — (2a + 3b) = 5a — 2a — 3b = 3a — 3b
2) (7x — (4x — 2y) = 7x — 4x + 2y = 3x + 2y
3)
1) (2a + 5b) եթե (a = 4) (b = -3):
2(4) + 5(-3) = -7
Щ
2) (4m — 3n + 10) եթե (m = -5) (n = -8):
4(-5) — 3(-8) + 10 = 14]
4)
1. (x = 2, y = 7)
2. (x = 2, y = 1)
5)
1) (x + 2) * 5 = 5x + 10
2) 6(3y — 4) = 18y — 24
6)
1) (x + 2)(x — 3)= x^2-x-6
2) (5x + 1)(2x + 4)=
7)
(a³)²=a^6 (x²)⁴=x^8
8.
) 8(х+3)=48 x=3
2) 5(у-1)=30 y=7
Գեղամ Տիգրանյանի բլոգ 