Question

What are the solutions to the quadratic equation (2b+3)^2=12

Answer 1

b=− 3/4 =−1.333

b= 2/3=1.500

explanation

middle term, which is -1 .

-72 + 1 = -71

-36 + 2 = -34

-24 + 3 = -21

-18 + 4 = -14

-12 + 6 = -6

-9 + 8 = -1 That's it

Two real solutions:

b =(1+√289)/12=(1+17)/12= 1.500

or:

b =(1-√289)/12=(1-17)/12= -1.333