If x2 - 3x + 2 = 0, values of x correct to one decimal place are :
2.0 and 1.0
2.0 or 1.0
3.0 and 2.0
3.0 or 2.0
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If x2 - 4x - 5 = 0, values of x correct to two decimal places are :
5.00 or -1.00
5 or 1
5.0 and -1.0
-5.00 and -1.00
If x2 - 8x - 9 = 0; values of x correct to one significant figure are :
9 and -1
9 or -1
9.0 or -1.0
9.00 or -1.00