Express the answer in standard form.

Step-by-step explanation:

Standard form is basically where the degrees of the terms are in descending order.

First, let's distribute the negative sign to the terms in the second parentheses:

Now, we can just combine like terms with the terms from the first parentheses:

So, our answer is:

Step-by-step explanation:

(x² + 3x - 7) - (3x² - 5x + 3)

Take (-) inside to remove the parenthesis

(x² + 3x - 7) - (3x² - 5x + 3) = x² + 3x - 7 - 3x² + 5x - 3

= x² - 3x² +3x + 5x -7 - 3   {bring the like terms together and do the arithmetic operation}

= -2x² + 8x - 10    

13.46

step-by-step explanation:

16.80 x .20 = 13.46

i believe the answers 600m