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Mohammad
Mathematics
26 March, 04:56
F (3) = x^ (3) - 19x+30
Show that is equation = 0
+2
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1
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Scarlett Terry
26 March, 05:13
0
Sub in 3 for all the x: = (3) ³ - 19 (3) + 30
Expand the brackets: = 27 - 57 + 30
Solve the equation: = 0
Say you've solved it: QED
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