3 years ago

What number should be added to the expression x^2+4x to change it into a perfect square trinomial?

Mathematics

2 answers:

sleet_krkn [62]3 years ago

8 0

4

$x^2+4x+4=(x+2)^2$

lys-0071 [83]3 years ago

4 0

X² + 4x + 4 = (x+2)²

Answer is 4.

Hope it helps!

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