" 11."5a-1a^(2)-(2a(1-a+4a^(2))-3a(a^(2)-5a-3)}-8a

5a - [a^(2) - {2a (1 - a + 4a^(2)) - 3a(a^(2) - 5a -3)}] - 8a

Find : (16a^(2)-2a-3)/(8a^(2)+11a+3) div (3a^(2)-2a-1)/(3a^(2)-11a-4)

What must be added to the sum of 2a^(2)-3a+7,-5a^(2)-2a-11 and 3a^(2)+5a-8 to get 0?

Find each of the following products: (i) (x + 3) (x - 3) (ii) (2x + 5)(2x - 5) (ii) (8 + x)(8 - x) (iv) (7x + 11y) (7x - 11y) (v) (5x^(2) + (3)/(4) y^(2)) (5x^(2) - (3)/(4) y^(2)) (vi) ((4x)/(5) - (5y)/(3)) ((4x)/(5) + (5y)/(3)) (vii) (x + (1)/(x)) (x - (1)/(x)) (viii) ((1)/(x) + (1)/(y)) ((1)/(x) - (1)/(y)) (ix) (2a + (3)/(b)) (2a - (3)/(b))

Find the value of the expressions, when a= -1" and "b= 3 5a^(2)+4ab^(2)-8a^(2)b .

3(5a-7)-2(9a-11)=4(8-13-1)

Add the following 5a+2a^2-3a^3+8, -4a^2 +5a^3 -9, -2a+6a^2 -3a^3 , -a+4a^2 -9, 4-a-2a^2 +3a^3

Evaluate each of the following: ((2)/(11))^(4)x((11)/(3))^(2)x((3)/(2))^(3)((1)/(2))^(5)x((-2)/(3))^(4)x((3)/(5))^(-1)

(2a^(2) + a - 1)/(a + 1) + (3a^(2) + 5a + 2)/(3a + 2) + (4 - a^(2))/(a+2) =..