Which polynomial expression represents the area of the outermost square tile, shown below? a square shaped tile with length x minus three is shown x2 + 6x − 6 x2 − 9x + 6 x2 + 6x − 9 x2 − 6x + 9

The square of a binomial can be worked out using the distributive propery.

(x - 3)² = x(x -3) -3(x -3) = x² -3x -3x +9

= x² -6x +9

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.

sinn is the total amount of students now and m were the students before, you subtract them both (n-m) and divide that by m. then, since to get a percentage from a fraction you have to multiply by 100, your answer should look like this: n-m/m*100

step-by-step explanation: