Answer:
x = 9 or x = 0 or x = -2
Step-by-step explanation:
Solve for x:
3 x^3 - 21 x^2 - 54 x = 0
The left hand side factors into a product with four terms:
3 x (x - 9) (x + 2) = 0
Divide both sides by 3:
x (x - 9) (x + 2) = 0
Split into three equations:
x - 9 = 0 or x = 0 or x + 2 = 0
Add 9 to both sides:
x = 9 or x = 0 or x + 2 = 0
Subtract 2 from both sides:
Answer: x = 9 or x = 0 or x = -2
f(x) = 2x + 1 and g(x) = f(x) + 3
g(x) = 2x + 1 + 3
<h2><u>g(x) = 2x + 4</u></h2>
Answer:
Step-by-step explanation:
<h3>(2,1) (4,2)</h3>
Answer:
28/81
Step-by-step explanation:
4/9 x 7/9; 2 negatives = a positive so the answer is 28/81
Hope this helps! :)
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