Brainliest offered! solve and show : 2x²-1=x²+4x+11

First we want to put this into standard form.
Subtract (x^2+4x+11) from both sides
x^2-4x-12

Then factor the trinomial
(x-6)(x+2)

Use the zero product property to find roots
(x-6)=0
x=6

(x+2)=0
x=-2

Final answers: x=-2, x=6

1. isolate the variable, in this case, d. subtract 35.5 on both sides of the equation.2. 52 subtracted by 35.5 is 16.53. therefore your answer would be d= 16.5this is the basics of pre algebra, isolating variable through adding, subtracting, multiplying, and dividing, if you have any other questions to ask just comment!