Question

Hey i need help with this question, can you help?

Answer 1

12x²-2/14x²-9

Explanation:

Since the denominators are the same you can ignore them.

9x²+3- (-3x²)+5

Simplyfies to 12x²-2

Answer 2

`\bold{\text{Answer:}\quad (2(6x^2-1))/(14x^2-9)}`

Explanation:

`.\quad (9x^2+3)/(14x^2-9)-(-3x^2+5)/(14x^2-9)\\\\\\=(9x^2+3)/(14x^2-9)+(-(-3x^2+5))/(14x^2-9)\\\\\\=(9x^2+3)/(14x^2-9)+(3x^2-5)/(14x^2-9)\\\\\\=(9x^2+3+3x^2-5)/(14x^2-9)\\\\\\=(12x^2-2)/(14x^2-9)\\\\\\=\large\boxed{(2(6x^2-1))/(14x^2-9)}`