Question

15x^2-7x-2=11x^2+6x-11

Answer 1

Step-by-step explanation:

15x^2-7x-2=11x^2+6x-11

4x^2-13x+9=0

4x^2-4x-9x-9=0

4x(x-1)-9(x-1)=0

(x-1)(4x-9)=0

x=1 or 9/4

Answer 2

Step-by-step explanation:

${15x}^{2} - 7x - 2 = {11x}^{2} + 6x - 11 \\ = > {15x}^{2} - 7x - 2 - {11x}^{2} - 6x + 11 \\ = > {4x}^{2} - 13x + 9 \\ = > {4x}^{2} - 9x - 4x + 9 \\ = > x(4x - 9) -1 (4x - 9) \\ = >( x + 1)(4x - 9) \\1) = > x + 1 = 0 = x = - 1 \\ 2)= > 4x - 9 = \frac{9}{4}$