<em><u>Option A</u></em>
<em><u>The solution is:</u></em>

<em><u>Solution:</u></em>

We have to solve the equation f(x) = 0
Let f(x) = 0

Solve the above equation


Take square root on both sides

Thus the solution is found
 
        
             
        
        
        
A is c=75 B is a=120 C is b= square root of 75 and D= square root of 245
        
             
        
        
        
Answer:
(b - c)(a - d)
Step-by-step explanation:
Given
a(b - c) + d(c - b) ← factor out - 1 
= a(b - c) - d(b - c) ← factor out (b - c) from each term
= (b - c)(a - d)
 
        
             
        
        
        
<span>inversely
y = k/x
k = yx
k = 10*10 = 100
when y = 20
20 = 100/x
20x = 100
   x = 5
answer
</span><span> x = 5 when y is 20</span>