Question

$\sqrt{2x { }^{2} } + 7x + 5 \sqrt{2}$
by quadratic formula​

Answer 1

Answer:

9

Step-by-step explanation:

by quadratic formula-x=b^2-4ac

a=√2,b=7,c=5√2

b^2-4ac

7^2-4×√2×5√2

49-4×5×√2×√2

49-20×2

49-40

x=9

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