Question

please explain the correct answer

Answer 1

Ans is c .. put all value in equation .. .. it is easy methode for exam ..

Answer 2

hey frnd.....
just solve both the equation and see which factor is common....
${x}^{2} + 7x + 10 \\ {x}^{2} + 5x + 2x + 10 \\ x(x + 5) + 2(x + 5) \\ (x + 2)(x + 5)$
and
${x}^{2} - 3x - 10 \\ {x}^{2} - 5x + 2x - 10 \\ x(x - 5) + 2(x - 5) \\ (x + 2)(x - 5)$
now they both have (x+2) as common solution....
so it's common factor
(4) x+2 is correct option

HOPE THIS HELP YOU ☺☺❤❤❣❣❣❣