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AysviL [449]
3 years ago
13

4x^2 = 28x Solve and explain how you arrived at the solution

Mathematics
1 answer:
dlinn [17]3 years ago
4 0
Step 1: Subtract 28x from both sides.
4x2−28x=28x−28x4x2−28x=0
Step 2: Factor left side of equation.
4x(x−7)=0
Step 3: Set factors equal to 0.
4x=0 or x−7=0
Answer:x=0 or x=7
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There are 12! ways to line 12 people up.  That is 12 factorial (the name for the exclamation point
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3                       6
4                      24  (Notice that if you multiply 6 x 4 you get 24)
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7                     5040
8                    40,320
9                    362,880
10                 3,628,880
11               39,916,800
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