Question

if The result obtained by multiplying a number, x, by a number 1 less itself is 4 less than multiplying x by itself, then x?​

Answer 1

Multiplying a number x by a number 1 less itself which is ( x- 1 )

Result is 4 less than multiplying x by itself so it would be x^2 and 4 less so x^2 - 4

Now x ( x - 1 ) = x^2 - 4

x^ 2 - x = x^ 2 - 4

x ^2 cancel

- x = - 4

x = 4

The correct answer is 4.

Hope it helps...