Its true you are doing it to both side. If you only one side, then the inequality would not be true. Subtract is like adding the negative . number, so you still would have to do it to both side of the inequality so the inequality is true,
Answer:
The zeros are

Step-by-step explanation:
we have

we know that
The formula to solve a quadratic equation of the form
is equal to

in this problem we have
Equate the function to zero
so

substitute in the formula

therefore

Answer:
27
Step-by-step explanation:
1 mile took 9 min to run, so 3 miles will be:
3 x 9 =
27
Answer:
no
Step-by-step explanation:
it makes a new answer