tolong bantuin ya klk bisa sama caranya juga makasi

1a) (2x + 2y) + (7x + 8x)
= 2x + 15x + 2y
= 17x + 2y
b) 2(4x - 3) - 3(5x + 2)
= 8x - 6 - 15x - 6
= 8x - 15x - 6 - 6
= - 7x - 12
c) (4x + 2)³
= (4x + 2)(4x + 2)²
= (4x + 3)(16x² + 16x + 4)
= 64x³ + 48x² + 64x² + 48x + 16x + 12
= 64x³ + 112x² + 64x + 12
d) (2 / x+2 ) + (6 / x+3 )
= 2(x + 3) + 6 (x + 2)
-------------------------------
(x + 2)(x + 3)
= 2x + 6 + 6x + 12
----------------------------
(x + 2)(x + 3)
= 8x + 18
---------------
(x + 2)(x + 3)
= 8x + 18
----------------
x² + 5x + 6

e) x² + 2x - 35
-----------------------
x² + 14x + 49
= (x + 7)(x - 5)
----------------------
(x + 7)(x + 7)
= (x - 5)
-------------
(x + 7)

2) f(x) = 5x - 2
a) {2,3,4,5,6, 7}
b) f(2) = 5(2) - 2 = 10 - 2 = 8
f(3) = 5(3) - 2 = 15 - 2 = 13
f(4) = 5(4) - 2 = 20 - 2 = 18
f(5) = 5(5) - 2 = 25 - 2 = 23
f(6) = 5(6) - 2 = 30 - 2 = 28
f(7) = 5(7) - 2 = 35 - 2 = 33
Hp = {x | 12< x < 33 }
d) (3,13) (4,18) (5,23) (6,28) (7,33)

b) f(x) = ax + b
f(2) = 2a + b = 18
f(7) = 7a + b = 33
--------------------------(-)
- 5a = - 15
a = 3

2a + b = 18
2(3) + b = 18
6 + b = 18
b = 18 - 6
b = 12

f(x) = 3x + 12
f(5) = 3(5) + 12 = 15 + 12 = 27