Question

$x {}^{2} - 11 {}x - 26 = 0$

Answer 1

be put the quadratic equations rule then you get answers

Answer 2

Hey friend, Harish here.
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Here is your  answer
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$x^{2} - 11x -26 = 0$

⇒$x^{2} + 2x - 13 x -26 = 0$

⇒$x(x+2)- 13 ( x+2) = 0$

⇒$(x+2) ( x-13) = 0$    -------- (factorized form)
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Hope my answer is helpful to u.