Question

F(x) = -7x2 + 9x - 15 and g(x) = -12x2 – 15x + 7

g(x) -f(x)


please explain i dont understand.​

Answer 1

`{5x}^(2) + 6x = - 8`

Explanation:

This question is asking you to insert two equations, f(x) and g(x), into the equation g(x) - f(x). This will lead to the equation below.

`{ - 12x}^(2) - 15x + 7 - ({ - 7)x}^(2) + 9x - 15`

Now we can solve for the equation.

`{ - 5x}^(2) - 6x - 8 = 0 \\ {5x}^(2) + 6x = - 8`