Checking square roots, we see that 5^{2} = 25 and 6^{2} = 36

Our answer is not an integer, so we try simplify it into the product of an integer and a radical.

We do this by listing each product combo of 28 checking for integer square root values below:

√28 = √1√28

√28 = √2√14

√28 = √4√7

Find the highest integer square root

The highest factor that has an integer square root is 4

Therefore, we use the product combo √28 = √4√7

Evaluating square roots, we see that √4 = 2

Final Answer

y = ±2√7

What is the Answer?

y = ±2√7

How does the Equation and Inequalities Calculator work?

Free Equation and Inequalities Calculator - Solves an equation or inequality with 1 unknown variable and no exponents as well as certain absolute value equations and inequalities such as |x|=c and |ax| = c where a and c are constants. Solves square root, cube root, and other root equations in the form ax^2=c, ax^2 + b = c. Also solves radical equations in the form asqrt(bx) = c. Also solves open sentences and it will solve one step problems and two step equations. 2 step equations and one step equations and multi step equations This calculator has 1 input.

What 3 formulas are used for the Equation and Inequalities Calculator?

One Step Equations (Division):
cx = b
x = b/c
One Step Equations (Addition):
x + c = b
x = b - c
One Step Equations (Subtraction):
x - c = b
x = b + c