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Can someone help me on this. I've tried over and over trying to figure out which step is incorrect but no luck. Help me out; write explanation and evidence please

Can someone help me on this Ive tried over and over trying to figure out which step is incorrect but no luck Help me out write explanation and evidence please class=

Respuesta :

If we can see in step C, we have that:

[tex](x+2)^2=x^2+2\cdot2x+2^2=x^2+4x+4[/tex]

Then, in step C, we have that:

[tex]5x=x^2+4x+4[/tex]

The explanation is that the square of (x+2)^2 = x^2 + 4x + 4, and not x^2 + 4.

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