12x2 11x 5 A 6x 5 B 3x 1 C 4x 5 D 3x 1 x5 8x3 15 x a

12x^2 + 11x -5 A. 6x - 5 B. 3x + 1 C. 4x - 5 D. 3x - 1 x^5 - 8x^3 + 15 x a. x^2 - 3 B. x - 5 C. x + 5 D. x - 3 16x^2 - 81y^4 A. 4x^2 + 9y^2 B. 4x^2 + 9y C. 4x - 9y^2 D. 4x - 9y Simplify each expression. Assume that all variables represent positive real numbers. (a^3 bc^4/a^2b^4 C^5)^-2 A. a^10 C^2/b^10 B. c^2 C. a^2 c^2/b^6 D. a^10/b^10 c^2 x^2 - 6xy + 9y^2/4x^2 - 36y^2 + x - 3y/15x^2 + 45xy A. (x+ 3y)^2/x - 3y B. 3y - x /(x + 3y)^2 C. -4/15x D. 15x/4 5x^2 + 5x - 4/(x - 4) (x + 3.) B. 2x - 5/x + 3 C. x + 5/x - D. 3x - 2/x - 4 (x + 3)^2/6, 10/4x + 12 A. 12(x + 3)/5 B. 5(x + 3)/12 C. 5(x + 3)/3 D. (x + 3)^2/12

Solution

39) Given 12x² + 11x - 5

Need to find the factors of the equation.

12x² + 11x - 5

12x² + 15x - 4x - 5

3x (4x + 5) -1 (4x + 5)

(4x + 5)(3x - 1)

Therefore, factors of given equation 12x² + 11x - 5 are (4x+5) and (3x-1)

So, option D is correct.