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  • Find the value of the following expressions, when x = -1: (iii) x^ 2 + 2x + 1

Q. 3.     Find the value of the following expressions, when x=-1:

             (iii)  x^{2}+2x+1

Answers (1)

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\\x^2 + 2x + 1 \\= ( -1 )^2 + 2 \times ( -1 ) + 1 \\= 1 - 2 + 2 \\= 0

If x = -1 the value of x2 + 2x + 1 = 0

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