Question

3x(x + 6) = -10

Answer 1

Answer: See below

Step-by-step explanation:

To find the solution, we must first expand 3x(x+6) and move all terms onto one side.

3x²+18x=-10

3x²+18x+10=0

Since this equation is hard to factor, we will use the quadratic formula to get the solutions.

We know our values of A, B, C to plug into the quadratic equation.

A=3

B=18

C=10

$\frac{-b±\sqrt{b^{2} -4ac} }{2a}$

(Ignore the capital A in the equation. It pops up when I use the ± sign.)

After you plug in the values of A, B, C into the equation, you get:

$x=\frac{-9+\sqrt{51} }{3}$ and $x=-\frac{9+\sqrt{51} }{3}$

Answer 2

Answer: First One             3x²+18x= -10

              Second One        x²+6x= -10/3