Solve the equation by identifying the quadratic form. Use a substitute variable(t) and find all real solutions by factoring.

Type your answers from smallest to largest. If an answer is not an integer then type it as a decimal rounded to the nearest hundredth. When typing exponents do not use spaces and use the carrot key ^ (press shift and 6). For example, x cubed can be typed as x^3.



(x^2-1)^2+(x^2-1)-12=0
Step 1. Identify the quadratic form

Let t= Answer
. We now have:

t^2+t-12=0


Step 2. Factor

Factor this and solve for t to get t=Answer
and Answer




Step 3. Solve for x

We have solved for t now we need to use this value for t to help us solve for x. Revisit step 1 to remind you of the relationship between t and x. Type your real solutions (no extraneous) from smallest to largest.

x=___ and ___