write square : (x+2)^2
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Answered by
1
(x+2)²
=x²+2(x)(2)+(2)²
=x²+4x+4
Answered by
0
(a+b)^2 = a^2+ b^2+2ab
= x^2+4+2.2.x
=x^2 + 4 + 4x
= x^2+4x+4
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