3x 42x2 41 2723 8 degree 2723 3 Squareroot8 Squareroot 3

(3x - 4)(2x^2 + 4)(+1) 27^2/3 8 degree - 27^2/3 3 Squareroot8 - Squareroot 32 + 3 Squareroot 72 - Squareroot 75 Squareroot 2 - 5 Squareroot 2 3 Squareroot 18 + Squareroot 32 2 Squareroot 3 - Squareroot 12 cubicroot 16/cubicroot 2 15/Squareroot 5 11/5 + Squareroot 7

Solution

9) (3x -4)(2x^2 + 4x+1)

multiply the terms :

(6x^3 +12x^2 +3x -8x^2 -16x -4)

= 6x^3 +4x^2 -13x -4

10) 27^2/3 = (3^3)^2/3 = 3^2 =9

11) 8^0 - 27^2/3

= 1 - 3^2 = -8

12) 3sqrt8 -sqrt32 + 3sqrt72 -sqrt75

= 3sqrt(4*2) - sqrt(16*2) +3sqrt(8*9) - sqrt(3*25)

= 6sqrt2 - 4sqrt2 + 18sqrt2 - 5sqrt3

= 20sqrt2 - 5sqrt3

13) sqrt2 - 5sqrt2 = - 4sqrt2