Solve the quadratic figures 3x^2 + x - 5

To solve this quadratic equation we should first see if it is possible to factorise it into two seperate brakets. In this case there are no numbers which multiply to give -5 and add to give 3. Thus we should resort to using the quadratic formula which is used when equations cannot be solved by inspection. The quadratic formula is x=(-b+-(b2-4ac)1/2)/2a. Values for a,b and c can be lifted from the question. ax2+b-c=0 so in this question a=3 b=1 and c=-5. Inputing these into the equation will give two results.

The answers are

x=1.135 or x=-1.468

both of these answers make the original equation true

it would be 15

Step-by-step explanation:

452,489 to the nearest thousand is 452,000