The square of 9 less than a number is 3 less than the number. what is the number?
-12 or 7
-12 or -7
-7 or 12
07 or 12

D

Step-by-step explanation:

(x-9)² =  x-3

(x-9) (x-9)= x-3

x² - 9x-9x +81 = x-3

x² -18x+81 =x-3

x²-19x+84 =0

(x-12)(x-7)=0

x=12 or 7

step-by-step explanation:

through just a quick inspection, one can see that the graph of this cubing function starts in quadrant iii and ends in quadrant i.   when x = 0, y = 3, so the y-intercept is (0, 3).

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