Factour ouf 3
f(x)=3(x²-9)
recognize diference of 2 perfect squres
a²-b²=(a+b)(a-b)
x²-9=x²-3²=(x+3)(x-3)
so
f(x)=3(x+3)(x-3)
seto to zero to find roots
0=3(x+3)(x-3)
0=x+3
-3=x
0=x-3
3=x
roots at x=-3 and 3
Answer:
35 sandwiches to sell
Step-by-step explanation:
29+20=49
49-14=35
Answer:
slope is 1
Step-by-step explanation:
because if you picked any 2 points on the line it would be the same rise over run
-7.14 should be your answer!