find the roots of the quadratic equation by completing the square method √2x^2+ 7x+5√2 = 0
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Answered by
6
Answer:
x = -5√2 / 2 OR x = -√2
Step-by-step explanation:
√2x² + 7x + 5√2 = 0
=> x² + (7/√2)x + 5 = 0
=> x² + (7/√2)x = -5
=> ( x + 7/2√2 )² = -5 + (7/2√2)² = -5 + 49/8 = -40/8 + 49/8 = 9/8
=> x + 7/2√2 = ±3/2√2
=> x = ( -7 ± 3 ) / 2√2
=> x = -10 / 2√2 = -5/√2 = -5√2 / 2 OR x = -4 / 2√2 = -√2
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Answered by
3
Answer:
x = - √2 or - 5 / √2
Step-by-step explanation:
In the attachment.. Hope it's helpful..
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