8x = (52)2 – (48)2 then x = ……………….. A) 12 B) 50 C) 9

1.	8x = (52)2 – (48)2 then x = ……………….. A) 12 B) 50 C) 9 D) 26
Answer» Correct option is B) 50 Correct option is (B) 50 \(52^2–48^2\) \(=(52-48)\times(52+48)\) \(=4\times100=400\) \(\therefore\) 8x = 400 \(\Rightarrow\) \(x=\frac{400}8=50\)

8x = (52)2 – (48)2 then x = ……………….. A) 12 B) 50 C) 9 D) 26

Answer»

Correct option is B) 50

Correct option is (B) 50

\(52^2–48^2\) \(=(52-48)\times(52+48)\)

\(=4\times100=400\)

\(\therefore\) 8x = 400

\(\Rightarrow\) \(x=\frac{400}8=50\)