Question

split the middle term

Answer 1

Heya..!!!


-------(1)


X² + 6x - 216

=> X² + 18x - 12x - 216

=> X(x + 18) - 12(x + 18)

=> (X - 12)(x + 18)



--------------(2)

X² - 7x - 60

=> X² - 12x + 5x - 60

=> X(x - 12) + 5(x - 12)

=> (X + 5)(x - 12)




--------------(3)



X² + x - 360

=> X² + 18x - 17x - 360

=> X(x + 18) - 17(x + 18)

=> (X - 17)(x + 18)


HOPE IT'S HELP YOU

Answer 2

(1)

x^2 + 6x - 216

x^2 - 12x + 18x - 216

x(x - 12) + 18(x - 12)

(x - 12)(x + 18).



(2)


x^2 - 7x - 60

x^2 - 12x + 5x - 60

x(x -12) + 5(x - 12)

(x + 5)(x - 12)




(3) 

x^2 + x - 306

x^2 - 17x + 18x - 306

x(x - 17) + 18(x - 17)

(x + 18)(x - 17)



Hope this helps!