Question

1. Express the following expressions in the square forms.
a) x2 + 4x + 4


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Answer 1

Answer:

$x ^{2} + 4x + 4 = 0\\ x {}^{2} + 2x + 2x + 4 = 0\\ x(x + 2) 2(x + 2) = 0 \\ x + 2 = 0 \\ x = - 2$