Jean says that you can take the square root of each side of an equation. Therefore, she decides that (x - 2)2 + (y + 3)2 = 36 and (x - 2) + (y + 3) = 6 are equuivalent equations. Marco says that the equations are not equivalent. Who is right? Explain your answer.

Question

Jean says that you can take the square root of each side  of an equation. Therefore, she decides that (x - 2)2 + (y + 3)2 = 36 and (x - 2) + (y + 3) = 6 are equuivalent  equations. Marco says that the equations are not equivalent. Who is right? Explain your answer.

anonymous · Answer

$$\sqrt{a^2+b^2}\neq a+b$$

anonymous · Answer

$$\Large5=\sqrt{25}=\sqrt{16+9}\neq \sqrt{16}+\sqrt{9}\neq 4+3\neq 7$$
because
$$\LARGE 5\neq 7 $$

anonymous · Answer

so which one is right

anonymous · Answer

mine one is just an example of what satellite showed you !

anonymous · Answer

so how do i go about solving this equation