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5 votes
Please help me solve this it’s so stressful

Please help me solve this it’s so stressful-example-1
User Pvomhoff
by
6.6k points

1 Answer

6 votes

Answer:

Explanation:

you are being asked to "Solve a quadratic"

There are various METHODS to do this.

You will learn a few of them

-graphing

-substation

-complete the square

-quadratic formula

in this case the question wants you to solve it using the

Quadratic formula...

Ax^2 + Bx + C = 0 is the quadratic.

your A=-1 B=14, and C=61

you just have to plug in those numbers into:


-B ±
\sqrt{(B^(2)-4AC)/(2A)}

-14 ±
\sqrt{(14^(2)-4(-1)(61))/(2(-1))}

you should end up with 7+
√(110) & 7-
√(110)

which is -3.49 or 17.49

-3.49 does not make any sense, the 17.49 distance only makes sense for this problem

User NicoE
by
7.3k points