Question

suppose that four times the square of a number equals 20 times that number. what is the number?​

Answer 1

Answer:

your answer will be 5...

Answer 2

$Let \: a \: number \: be \: \blue {x}$

$4 \:times \: square \: of \: the \: Number = 4x^{2}$

/* According to the problem given */

$4x^{2} = 20x$

$\implies 4x^{2}-20x =0$

$\implies 4x(x-5) = 0$

$\implies 4x = 0 \: Or \: x - 5 = 0$

$\implies x = 0 \: Or \: x = 5$

Therefore.,

$\red{ Required \: number } \green { = 5 }$

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