Answer:
[tex]Q1 . (11x + 9) - (5x +1) = 11x + 9 -5x - 1 = 6x + 8[/tex]
option 1
[tex]Q2. \ \ 6(2x -3)+4=16-(-18)\\[/tex]
[tex]12x - 18 + 4 =16 +18\\12 x -14 = 34\\12x = 34 + 14 \\12x = 48\\x = 4[/tex]
option 4
[tex]Q3 .f(x) = 2x, \ g(x) = -2x^3 +2x\\[/tex]
[tex]f(x) + g(x) = -2x^3 +4x[/tex]
option 3
[tex]Q4. \ \sqrt{18x^3y5^}[/tex] [tex]= \sqrt{2*3^2*x^3*y^5} = 3*x*y^2\sqrt{2*x*y} = 3xy^2\sqrt{2xy}[/tex]
option 2
