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3 years ago

Plz help me with it

Mathematics

2 answers:

pishuonlain [190]3 years ago

7 0

Answer: 3

<u>Step-by-step explanation:</u>

$\sqrt{x+8}=\sqrt{2x+5}\\\\(\sqrt{x+8})^2=(\sqrt{2x+5})^2\\\\x+8=2x+5\\\\8=x+5\\\\3=x\\\\\\Check:\\\sqrt{(3)+8}=\sqrt{2(3)+5}\\\\\sqrt{11}=\sqrt{11}\ \checkmark$

vaieri [72.5K]3 years ago

4 0

$\sqrt{x + 8} = \sqrt{2x + 5} \\ x + 8 = 2x + 5 \\ - x = - 3 \\ x = 3$

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