Question

If AD=2, AC=x-1, BE=x+2 and AB||DE, then x=​

Answer 1

Answer:

I don't know

Step-by-step explanation:

what is this Question solutions

Answer 2

Step-by-step explanation:

In Δ ABC, DE ∥ BC

∴DBAD=ECAE

(By basic proportionality theorem)

⇒x−2x=x−1x+2

⇒x(x−1)=(x+2)(x−2)

⇒x2−x=x2−4

⇒x=4.