Two radical expressions are called like terms if they have the same degree and the

a. radical
b. denominator
c. number
d. term
e. radicand

E. Radicand

Step-by-step explanation:

Like terms are math terms that have the same power and the same variable, in this case two radical expressions can be like terms if they have the same degree and the same radicand, which is what you are calculating the root of, for example, the radicand in would be , so if there´s another term with the same radicand, and the same radical, which is the what kind of root are you doing, square root, cubic root, etc, etc, you can group them together and add them or substract them from eachother.

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step-by-step explanation:

x = ±sqrt(10)

step-by-step explanation:

5 - 2x² = -15

subtract 5 from each side

5-5 - 2x² = -15-5

-2x^2   = -20

divide by -2 on each side

-2x^2   /-2= -20/-2

x^2 =10

take the square root on each side

sqrt(x^2 )=±sqrt(10)

x = ±sqrt(10)

check:

5 - 2x² = -15

+sqrt(10)

5 - 2(sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

-sqrt(10)

5 - 2(-sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15