Question

Factorise x square +11x+30

Answer 1

Here is your solution :-

${x}^{2} + 11x + 30 = 0 \\ \\ {x}^{2} + 6 + 5x + 30 = 0 \\ \\ x(x + 6) + 5(x + 6) = 0 \\ \\ (x + 5) \: (x + 6) = 0 \\ \\ x = - 5 \: \: \: \: or \: \: \: x = - 6$

Good luck..

Answer 2

x² + 11x + 30

x² + 6x + 5x + 30

( x² + 6x ) + (5x + 30)

x ( x + 6 ) + 5 ( x + 6 )

( x + 6 ) ( x + 5 )

x + 6 = 0 or x + 5 = 0

x = -6 or x = -5