Question

find the HCF OF
X²+7X+12,X²+9X+20​

Answer 1

Answer:

Hope it's helpful.

Step-by-step explanation:

Solution:

x2 + 2x – 15                     &                x2 – 7x + 12

= x2 + 5x – 3x – 15                            = x2 – 4x – 3x – 12

= x (x + 5) – 3 (x + 5)                       = x (x – 4) – 3 (x – 4)

=(x + 5) (x – 3)                                 = (x – 4) (x – 3)

HCF = (x – 3)

Answer 2

find out h .c.m.of Xx+7x+12and X2+9x+20