Adding Expressions with Square Roots

28x square root + 63x square root

I assume you mean

sqrt (28x) + sqrt(63x)
sqrt(7*4x) + sqrt(7*9x)
2sqrt(7x)+ 3sqrt(7x)
5sqrt(7x)

To add expressions with square roots, you need to combine like terms. In this case, the like terms have the same radical, which is square root.

Let's break down the expressions:

Expression 1: 28x square root
Expression 2: 63x square root

Now, you can add the two expressions together:

28x square root + 63x square root

Since both expressions have the same radical, square root, you can simply combine the coefficients (28 and 63) and bring down the common radical:

(28 + 63) x square root

Simplifying the coefficients:

91x square root

Therefore, the sum of the two expressions is 91x square root.