Question

Phân tích thành nhân tử:

a. xy - y\(\sqrt{x}\) + \(\sqrt{x}\) - 1

b. xy + y\(\sqrt{x}\) + \(\sqrt{x}\) + 1

HELP ME!!!

Answer 1

\(a,=\sqrt{xy}\left(\sqrt{x}-1\right)+\left(\sqrt{x}-1\right)=\left(\sqrt{xy}+1\right)\left(\sqrt{x}-1\right)\\ b,=\sqrt{xy}\left(\sqrt{x}+1\right)+\left(\sqrt{x}+1\right)=\left(\sqrt{x}+1\right)\left(\sqrt{xy}+1\right)\)