find the value of the expression given the value of the variables.show your solution.
1.4x + 1 ; x=1
2. 2.² - 3x + 5 ; x= 2
3.ab - 1 ; a = -2 , b = -1
1.4x + 1 ; x=1
2. 2.² - 3x + 5 ; x= 2
3.ab - 1 ; a = -2 , b = -1
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