Answer:
3x² + 8x - 9
Step-by-step explanation:
8x² - 5x² +x+7x-10+1
=3x² + 8x - 9
x^2-12x+(6)^2 is correct answer
8 2/5 ÷(-2 1/5) = -3.81818181818
Step-by-step explanation:
To solve this, you either need x or y. So x or y can be the missing values. The most you can do is simply move one of the terms to the other side.
it would be 9.93300
so 3 decimal places because the zeros don't count
