Question

(x+4)×(x-5) is
Urgent​

Answer 1

Answer:

x² - 1x - 20

Step-by-step explanation:

formula : (x+a) (x+b)= x²+(a+b)x+ ab

(x+4)(x-5)

=x²+ {4+(-5)}x +4×(-5)

=x²+(4-5)x +4×(-5)

=x² +(-1)x +(-20)

=x² - 1x -20

I hope it's help you