Step-by-step explanation:
x-1=2 therefore x is 3 so 2x squared is 36
Answer:
1.22474487139
x = 3
so if 2x^2 - 1 = 2
add 1 to both equations
2x^2 = 3
next, divide 2 from both sides
x^2 = 3/2
x^2 = 1.5
now find the square root of 1.5
the answer is:
