In the second step while distributing she made a mistake
It should have been
2x^2 -4x -6x +18 = 9x - 27
So answer should be
She did not use the distributive property correctly
Step-by-step explanation:
16+5.6+0.681=22.281
First see you can factor out 4. What is left is x^2 + 6x - 16.
That can be factored as (x+8)(x-2) so the total factorization is
4(x+8)(x-2)
Answer: acute 90-
Step-by-step explanation: