Question

Answer the followingconstruct the quadratic equation with the statement: 5 times of a positive whole number is less by 3 then twice of the square??​

Answer 1

Answer:

Let the number be x,

5 times of x =5x

3 less than twice of square of x = 2x² -3

step by step explain:

>5x = 2x² - 3

>2x²- 5x - 3 = 0

>2x² - (6-1) x-3=0

>2x² - 6x + x - 3 = 0

>2x(x-3)+1(x-3)= 0

>(x-3) (2x+1) = 0

x=3 or x=(-1/2)