Answer:
B. in step 1
Step-by-step explanation:
Given that a student performed the following steps to find the solution of the quadratic equation .
Step 1: Factor the polynomial into (x-4) and (x-2).
Step 2: x-4=0 and x-2=0
Step 3: x=4 and x=2.
Now we need to find about which step has the error.
let's multiply (x-4) and (x-2)
we get :
While original problem has -8 as the last term. So that means factors are wrong.
Hence choice B. in step 1. is correct
The Area of Shaded region is equal to the difference in Area of rectangle and Area of triangle .
let's solve for area of rectangle :
Now, Area of Triangle :
So, the area of the shaded region in terms of x :
And since, Area of Shaded region = 44 cm²
By equating the area, we get
Value of x = 2
