Penjelasan dengan langkah-langkah:
ALJABAR
NOMOR 21
2x + 3y - 5x + 7
= (2x-5x)+3y + 7
= -3x + 3y + 7
NOMOR 22
(2x + 4y + 3) + (2x-3y-5)
= 2x + 4y + 3 + 2x-3y-5
= (2x+2x) (4y-3y) (+3-5)
= 4x +1y -2
= 4x +y -2
keterangan = +1y bisa langsung ditulis +y
NOMOR 23
5 (3x + 7)
= (5×3x) (5×+7)
= 15x +35
NOMOR 24
(2x + 7) - (5x-3)
= 2x + 7 - 5x+3
= (2x-5) (+7+3)
= -3x +10
nomor 20 dan 25 saya belum paham caranya
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Penjelasan dengan langkah-langkah:
ALJABAR
NOMOR 21
2x + 3y - 5x + 7
= (2x-5x)+3y + 7
= -3x + 3y + 7
NOMOR 22
(2x + 4y + 3) + (2x-3y-5)
= 2x + 4y + 3 + 2x-3y-5
= (2x+2x) (4y-3y) (+3-5)
= 4x +1y -2
= 4x +y -2
keterangan = +1y bisa langsung ditulis +y
NOMOR 23
5 (3x + 7)
= (5×3x) (5×+7)
= 15x +35
NOMOR 24
(2x + 7) - (5x-3)
= 2x + 7 - 5x+3
= (2x-5) (+7+3)
= -3x +10
nomor 20 dan 25 saya belum paham caranya