Answer:
x = 4.5
Step-by-step explanation:
add following
divide both sides by 2
square both sides
simplify the following
x = 9/2
√2x + √2x = 6
2√2x = 6
2√2x/2 = 6/2
√2x = 3
(√2x)² =( 3)²
2x = 9
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