Question

resolva: a) 5a+4b+3a-a+6b-2b


b)3x²+4x+2-x²+6x+8-15

Answer 1

a)
5a + 4b + 3a - a + 6b - 2b
5a + 3a - a + 4b + 6b - 2b
7a + 8b

b)
3x^2 + 4x + 2 - x^2 + 6x + 8 - 15
2x^2 + 10x - 5

espero ter ajudado!!!!

Answer 2

$a)5a + 3a - a + 4b + 6b - 2b = 7a+ 8b \\ \\ b)3 {x}^{2} - {x}^{2} + 4x + 6x + 2 + 8 - 15 = 2 {x}^{2} + 10x - 5$