यदि (f(x)=8x+22), तो (f(3x)-f(x)) कब (80) होगा?
If (f(x)=8x+22), when will (f(3x)-f(x)) be (80)?
Explanation opens after your attempt
B. (x=5)
Concept
(f(3x)-f(x)=(24x+22)-(8x+22)=16x). From (16x=80), (x=5).
Why this answer is correct
The correct answer is B. (x=5). (f(3x)-f(x)=(24x+22)-(8x+22)=16x). From (16x=80), (x=5).
Exam Tip
(f(3x)-f(x)=(24x+22)-(8x+22)=16x) है। (16x=80) से (x=5) है।
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