Question

Which is the solution of the quadratic equation (4y - 3)^2 = 12?

Answer 1

Explanation:

Let's solve (4y - 3)^2 = 72 for y. To do this, take the square root of both sides. This yields:

4y - 3 = ±√72 = ±√(36·2) = ±6√2

Then 4y = 3 ±6√2, or

3 ± 6√2

y = ----------------

4