Question

find the value of x in 5x²=15x

Answer 1

Answer:

5x² = 15x

Here 5 can divide both the sides.

x² = 3x

(On dividing both sides by x, we may lose a possible solution for the equation that "x = 0", so we don't get all the solutions for such equations. So strictly said not to divide both sides by x in such equations.)

3x is subtracted from both sides.

x² - 3x = 0

x can be taken as common in the LHS.

x(x - 3) = 0

This implies,

(1) x = 0

(2) x = 3

These two values for x satisfy the condition 5x² = 15x.

Answer 2

Step-by-step explanation:

5x2=15x

5x2/x=15x/x

5x=15

X=3