Question

Help look at the pic

Answer 1

b = -6.307 or -11.693

Explanation:

hope it helps credits to first guy tho

Answer 2

b = -6.307 or -11.693

Explanation:

`b^(2) +9b +13\\`

This can't be factored so you need to use the quadratic formula which is

-b ±
`\frac{\sqrt{b^(2) -4ac}}{2a}`

Plugging the numbers from the equation in, it's

-(9) ±
`\frac{\sqrt{(9)^(2)-4(1)(13) } }{2(1)}`

This simplifies down to b = -6.307 or -11.693.

These are both real solutions.