Question

if one zero of the polynomial x√2+11x+k is -3, find the value of k and the other zero​

Answer 1

$(- 3) \sqrt{2} + 11( - 3) + k = 0 \\ - 3 \sqrt{2} - 33 + k = 0 \\ - 3 \sqrt{2 } + k = 0 + 33 \\ - 3 \sqrt{2} + k = 33 \\ k = \frac{33 \times \sqrt{2} }{ - 3 \sqrt{2} \times \sqrt{2} } \\ k = \frac{33 \times \sqrt{2} }{ - 3 \times 2} \\ k = \frac{11 \sqrt{2} }{2} </p><p>$