Factor out the GCF<span>: </span>21x3y2<span> - 7x2y + </span>42xy<span> 5.)</span>Factor: 3x2 ... 4) 21x^3y^2-7x^2y+42xy<span> It looks as though x and y are common and 7 is common
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Since the 8 in the first number is in the thousands place, its value it 8*1000=8000.
Since the 8 in the second number is in the hundreds place, its value is 8*100=800.
8000 is ten times 800.
Final answer: 10x as large
The solutions are: x=3+ √3 and x=3-√3