Question

2x+y=2x-y=root 8plz answer this question ​

Answer 1

Answer:

$2x + y = 2x - y = \sqrt{8}$

$2x + y - 2x + y = \sqrt{8}$

$y + y + 0 = \sqrt{8}$

$2y = \sqrt{4 \times 2}$

$2y = 2 \sqrt{2}$

$y = \frac{2 \sqrt{2} }{2}$

$y = \sqrt{2}$

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Answer 2

Answer:

y = $\sqrt{2}$

Step-by-step explanation:

2x + y = 2x - y = $\sqrt8$

or, 2y = $\sqrt8$

or, $4y^{2}$ = 8

or, $y^{2}$ = 8/4 =2

or, y = $\sqrt{2}$