Question

Use the quadratic formula to find the roots of the equation. 2x^2 - 28x + 98 = 0
A. {-7, 7}
B. {7}
C. {-2, 49}
D. no real number solution

Answer 1

b

Answer 2

\[2(x^2-14x+49)=0\]\[2(x-7)(x-7)=0\]

Answer 3

so b

Answer 4

Option B is right