Question

factorization
$x {}^{2} - 11x = 42$
​

Answer 1

Answer:

x = 14 and x = - 3

Step-by-step explanation:

x² - 11x - 42 = 0

x² - 14x + 3x - 42 = 0

x(x - 14) 3(x - 14) = 0

(x - 14)(x + 3) = 0

$\mathsf{\large{\bold{\pink{\boxed{x = 14\:or\:x = - 3}}}}}$

Answer 2

Answer:

x²-11x=42

x²-11x-42=0

x²-14x+3x-42=0

x(x-14)+3(x-14)=0.

(x+3)+(x-14)=0

when x+3=0

: x=-3

x-14=0

,x=14