Question

Podrían ayudarme porfa​

Answer 1

$3a + (-2b) = 3a - 2a = 1a$

$-4x^{2} y + \frac{3}{8}x^{2} y + \frac{29}{8}x^{2} y = (-\frac{29}{8} )x^{2} y +\frac{29}{8}x^{2} y = 0$

$(3a + 2b - c) - (3a + 3b + c) = 3a + 2b - c - 3a - 3b - c = -1b -2c$

$(-am + 6mn - 4s) - (6s - am - 5mn) + (-2s - 11mn + 3am) =\\-am + 6mn - 4s - 6s + am + 5mn - 2s - 11mn + 3am= 3am - 12s$

$2x + ( y - 4x - ( z + 2y) + z) = 2x + y - 4x - z - 2y + z = - 2x - y$

$2x - (-x) = 2x + x = 3x$

$b - a - (a - b) = b - a - a + b = 2b -2a$

$16 - (b - c + a + d - 14) = 16 - b + c - a + d + 14 = 30 - b + c - a + d$

$- x^{2} + 6 - (x^{2} - 5x) = -x^{2} + 6 - x^{2} + 5x = -2x^{2} + 5x + 6$