Question

factorise the following x²+9x+20​

Answer 1

Step-by-step explanation:

Answer. Callum S. To factorize the quadratic expression x2−9x+20 , one must find the two numbers that add together to give 9, and multiply together to give 20. Those two numbers are 4 and 5, which factor into the expression (x−4)(x−5) .

Answer 2

Answer:

Please mark as brainliest.

Step-by-step explanation:

x2+9x+20=0

x2+4x+5x+20=0

x(x+4)+5(x+4)=0

(x+5) (x+4)=0