Answer:
-5x² + 5x + 3
Step-by-step explanation:
x^2+5x-9
First multiply 6x2 because that's a number that isn't solved in the parenthesis.
(x^2+5x-4) - (12-7)
Then you subtract 12-7 which equals 5.
(x^2+5x-4)-(5)
You now take the parenthesis off
x^2+5x-4-5
-4-5 equals -9
Now you get the answer: x^2+5x-9
I would help you and say the answer but..
I dont know what it is :c
I need the dull question