Let's call the unknown number x:
20*x2 = 20*x
x = 1
That ain't necessarily true in all cases. For example, square root of 2 times square root of 2 is equal to two, which is RATIONAL.
let n = number; then 8n squared = 96n and thus 8n = 96 and n = 12
Let the number be 'n'. Then, 20n2 = 15n.......divide throughout by 5 4n2 = 3n...................divide both sides by n 4n = 3 n = 3/4
Ten times the square of a non-zero number is equal to forty times the number. What is the number?
3x2 = 15x 3x2 - 15x = 0 x(3x - 15) = 0 x = 5 Check it. 3 x 25 = 75 15 x 5 = 75 It checks.
Actually the product of a nonzero rational number and another rational number will always be rational.The product of a nonzero rational number and an IRrational number will always be irrational. (You have to include the "nonzero" caveat because zero times an irrational number is zero, which is rational)
No 132 is not a square number because every number up to 132 times its self does not equal 132 and a square number is a number that is a multiple of 1 number times itself so 132 is not a square number.
the square root of the given number
Such a number is called, "The square root of 1".
One perfect square times another perfect square does produce a third perfect square.