Q. Aljabar
7x + 8a × 9b - 8x + 10
90x + 7x - 7c + 8a + 8c + 9c + 10a
note :
7x + 8a × 9b - 8x + 10
90x + 7x - 7c + 8a + 8c + 9c + 10a
note :
soal
7x + 8a × 9b - 8x + 10
jawab
7x + (8a × 9b) - 8x + 10
= 7x + 72ab - 8x + 10
= 72ab + (7x - 8x) + 10
= 72ab + -x + 10
soal
90x + 7x - 7c + 8a + 8c + 9c + 10a
jawab
8a + 10a + 8c + 9c + (-7c) + 90x + 7x
= 18a + (17 + (-7c)) + 97x
= 18a + 10c + 97x
[answer.2.content]