Which expression is equivalent to x2 - 9?
a (x – 3)
b (x – 3)(x– 3)
c (x − 3)(x + 3)
b (x + 3)(x + 3)

C. (x-3)(x+3)

Step-by-step explanation: Since both terms are perfect squares, factor using the difference of squares formula a^2-b^2=(a+b)(a-b) where a=x and  b=3.

Hope this helps you out! ☺

C

Step-by-step explanation:

x*x= x^2

-3*(+3)=-9

2x-9

the answer is 24

step-by-step explanation:

i think there was a typo. you wrote pat brings 3 quarts of ice-cream to the party. each serving of ice-cream is 1 6 quart. how many total servings of ice-cream does pat bring to the party? i think the bold is supposed to be 1/6. so 1 quart of ice cream = 6 servings. 6 * 3 = 18.