Question

Tolong ya, terutama yang nomer 2-5.. :)

Answer 1

2. 4x² + x - 3
=> (4x+1) (x - 3)
5. x = kemeja
y = celana
5x + 4y = 425000 x 3
4x + 3y = 330000 x 4
=> 15x + 12y = 1275000
=> 16x + 12y = 1320000
________________ _
=> -x. = -45000
=> x. = 45000

5x + 4y = 425000 x4
4x + 3y = 330000 x5
=> 20x + 16y = 1700000
=> 20x + 15y = 1650000
________________ _
=>. y = 50000

harga 1 kemeja dan celana = 45000 + 50000 = 95000