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3 years ago

Can anyone help me solve this?

Mathematics

2 answers:

Alecsey [184]3 years ago

8 0

Answer:

Step-by-step explanation:

$(\sqrt{z} +\sqrt{22})(\sqrt{z} -\sqrt{22})=35$

Subtract both sides from 35

$(\sqrt{z}+\sqrt{22} (\sqrt{z} -\sqrt{22})-35=35-35$

Simplify:

$(\sqrt{z})^{2} -57=0$

Factor $(\sqrt{z})^{2} -57: (\sqrt{z}+\sqrt{57}) (\sqrt{z}-\sqrt{57})$ =0

$\sqrt{z} +\sqrt{57}=0 or \sqrt{z} -\sqrt{57}=0$

$\sqrt{z} +\sqrt{57} =0: No Solution for Z$

$\sqrt{z} -\sqrt{57} =0: z=57$

Your answer will be z=57

and No solution

dsp733 years ago

3 0

Answer:

(

)(

−

)=35

Subtract both sides from 35

(\sqrt{z}+\sqrt{22} (\sqrt{z} -\sqrt{22})-35=35-35(

(

−

)−35=35−35

Simplify:

(\sqrt{z})^{2} -57=0(

)

−57=0

Factor (\sqrt{z})^{2} -57: (\sqrt{z}+\sqrt{57}) (\sqrt{z}-\sqrt{57})(

)

−57:(

)(

−

) =0

\sqrt{z} +\sqrt{57}=0 or \sqrt{z} -\sqrt{57}=0

=0or

−

\sqrt{z} +\sqrt{57} =0: No Solution for Z

=0:NoSolutionforZ

\sqrt{z} -\sqrt{57} =0: z=57

−

=0:z=57

Your answer will be z=57

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Can anyone help me solve this?​

Can anyone help me solve this?