1.

Find the value of the following expressions, when x = − 1: (i) 2x − 7 (ii) − x + 2 (iii) x2 + 2x + 1 (iv) 2x2 − x − 2

Answer»

Find the
value of the following expressions, when x = − 1:


(i) 2x
− 7 (ii) − x + 2 (iii) x2 + 2x
+ 1



(iv) 2x2
x − 2



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