Materi : Bentuk Aljabar
2( a + 2b ) + 3( 2a - b )
= 2a + 4b + 6a - 3b
= 8a + b
-3( 4x - 5y ) + 6( 2x - 3y )
= - 12x + 15y + 12x - 18y
= - 3y
3( a - 2b ) - 2( a + 5b )
= 3a - 6b - 2a - 10b
= a - 16b
7( x - 2y + 1 ) - 4( - 3y + 2 )
= 7x - 14y + 7 + 12y - 8
= 7x - 2y - 1
Semoga bisa membantu
[tex] \boxed{ \colorbox{darkblue}{ \sf{ \color{lightblue}{ answered\:by\: BLUEBRAXGEOMETRY}}}} [/tex]
Jawaban dengan penjelasan:
(1) 2(a+2b) + 3(2a-b)
= 2a + 6a + 4b - 3b
(2) -3(4x-5y) + 6(2x-3y)
= -12x + 15y + 12x - 18y
= -12x + 12x + 15y - 18y
= -3y
(3) 3(a-2b) - 2(a+5b)
= 3a - 2a -6b - 10b
(4) 7(x-2y+1) - 4(-3y+2)
= 7x - 14y + 12 + 7 - 8
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Materi : Bentuk Aljabar
Soal Nomor 1
2( a + 2b ) + 3( 2a - b )
= 2a + 4b + 6a - 3b
= 8a + b
Soal Nomor 2
-3( 4x - 5y ) + 6( 2x - 3y )
= - 12x + 15y + 12x - 18y
= - 3y
Soal Nomor 3
3( a - 2b ) - 2( a + 5b )
= 3a - 6b - 2a - 10b
= a - 16b
Soal Nomor 4
7( x - 2y + 1 ) - 4( - 3y + 2 )
= 7x - 14y + 7 + 12y - 8
= 7x - 2y - 1
Semoga bisa membantu
[tex] \boxed{ \colorbox{darkblue}{ \sf{ \color{lightblue}{ answered\:by\: BLUEBRAXGEOMETRY}}}} [/tex]
Jawaban dengan penjelasan:
(1) 2(a+2b) + 3(2a-b)
= 2a + 4b + 6a - 3b
= 2a + 6a + 4b - 3b
= 8a + b
(2) -3(4x-5y) + 6(2x-3y)
= -12x + 15y + 12x - 18y
= -12x + 12x + 15y - 18y
= -3y
(3) 3(a-2b) - 2(a+5b)
= 3a - 6b - 2a - 10b
= 3a - 2a -6b - 10b
= a - 16b
(4) 7(x-2y+1) - 4(-3y+2)
= 7x - 14y + 7 + 12y - 8
= 7x - 14y + 12 + 7 - 8
= 7x - 2y - 1