guys please solve this one on paper there are 2 Q OK. Plz solve on pap

1.	guys please solve this one on paper there are 2 Q OK. Plz solve on paper explaining it. Plz guys. Open full picture
Answer» Step-by-step explanation: $\bf{\underline{\underline\red{Question\:1:-}}}$ a + b -(2A + 3b + ab) + 6AB +( a - 4b - 2ab) $=\rm a + b -(2a ) + (- 3b ) + ( - ab) + 6ab + a - 4b - 2ab$ $=\rm a + b -2a - 3b - ab + 6ab + a - 4b - 2ab$ Arrange all the LIKE terms together $=\rm a -2a + a- 3b - 4b + b- ab+ 6ab - 2ab$ $=\rm 2a -2a - 7b + b+ 6ab - 3ab$ $=\rm - <klux>6B</klux> +3ab$ $=\rm 3ab - 6b$ $\bf{\underline{\underline\purple{Question\:2:-}}}$ 2x²y - 3x² + yx² - y² + 2x² - 6y² + 4x²y - 2y² Arrange all the like terms together = 2x²y + x²y + 4x²y - 3x² + 2x² - y² - 6y² - 2y² = (2 + 1 + 4)x²y + (-3 + 2 )x² + (-1 -6 -2) y² = (7)x²y + (-1)x² + (-9)y² = 7x²y - 1x² - 9y² = -x² + 7x²y - 9y² Required ANSWER:- (1) 3ab - 6b (2) -x² + 7x²y - 9y²