Question

HURRY. WILL GIVE BRAINLIST
(2x + 5) (x – 9) = 2x2 – ?x – 45
what is the missing value?​

Answer 1

Answer:

Step-by-step explanation:

(2x+5)(x−9)=2x2−x−45

2x2−13x−45=2x2−x−45

2x2−13x−45−2x2=2x2−x−45−2x2

−13x−45=−x−45

−13x−45+x=−x−45+x

−12x−45=−45

−12x−45+45=−45+45

−12x=0

−12x /−12 = 0 /−12

x=0