x2-√2x-4=0 answer this please
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Answer:
x² +√2x - 4 = 0
x² +√2x=4
Add (√2/2)² to both sides
x² +√2x + (√2/2)² = 4 + (√2/2)²
(x+√2/2)² = 4 + 2/4
(x+√2/2)²= 4 + 1/2
(x+√2/2)²= 9/2
Solve this equation
And the final solution are ...
x= 2√2
x=√2
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