Question

Help plz thank you so much

Answer 1

x=0.73

Explanation:

(+16) 2x^2+12x-16= -3(+16)

2x^2+12x=13/12

2x^2= 1.08/2

x^2=.54

sqrt x^2=.54

x=0.73

Answer 2

`x_1=-6.9\\x_2=0.9`

Explanation:

The first step is to move all the terms from the right side to the left side of the equation and then add the like terms:

`2x^2+12x-16=-3\\\\2x^2+12x-16+3=0\\\\2x^2+12x-13=0`

Now we can apply the Quadratic formula. This is:

`x=(-b\±√(b^2-4ac))/(2a)`

In this case we can identify that:

`a=2\\b=12\\c=-13`

Finally, we must substitute these values into the Quadratic formula. Then we get:

`x=(-12\±√(((12)^2-4(2)(-13)))/(2(2))`

`x_1=-6.9\\x_2=0.9`