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OpenStudy (anonymous):

Subject: Trigonometric Ratios. Solve the Equation-

OpenStudy (anonymous):

\[4=\sqrt{p}-2\]

OpenStudy (mertsj):

Add 2 to both sides.

OpenStudy (anonymous):

i think the answer is 36

OpenStudy (mertsj):

You are correct.

OpenStudy (anonymous):

nice. I have one more. can you help?

OpenStudy (mertsj):

yes

OpenStudy (anonymous):

\[\sqrt{q-9}=7\]

OpenStudy (mertsj):

Square both sides.

OpenStudy (anonymous):

16?

OpenStudy (mertsj):

Square BOTH sides

OpenStudy (mertsj):

\[(\sqrt{q-9})^2=(7)^2\]

OpenStudy (anonymous):

-9^2= -81 7^2= 49

OpenStudy (mertsj):

\[q-9=49\]

OpenStudy (mertsj):

\[q-9+9=49+9\]

OpenStudy (anonymous):

58

OpenStudy (mertsj):

You have to square the entire left side. You cannot square the individual terms under the radical

OpenStudy (mertsj):

yes. 58

OpenStudy (mertsj):

The reason you square the side is to get rid of the radical because:

OpenStudy (mertsj):

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