If (64)^2- (36)^2 = 20x, then the value of x is—

Number System Practice Test 2

Question : 7 of 40

Marks: +1, -0

(64)^2- (36)^2 = 20x

, then the value of x is—

Solution:

Here,

x={(64+36)(64-36)}/20

={100×28}/20=140

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