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??
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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)
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