Question

Menentukan hasil operasi jika diketahui P = 2x + 3y dan Q = 4x - 2y
a. P + Q
b. P - Q
c. 2p + 3q
d. P + 2q - 5p
kalau bisa pakek cara y hehehe

Answer 1

A. p+q=6x+y
b. -2x+5y

Answer 2

A. (2x+3y) + (4x-2y)
=2x+4x+3y-2y
=6x+y
b. (2x+3y) - (4x-2y)
= 2x-4x +3y+2y
=-2x+5y
c. 2(2x+3y) + 3(4x-2y)
=4x+6y+12x-6y
=4x+12x+6y-6y
=16x
d. p-5p+2q = -4p+2q
= -4(2x+3y) + 2(4x-2y)
= -8x-12y+8x-4y
= -8x+8x-12y-4y
= -16y

semoga terbantu :) ;)