Want this question answered?
Be notified when an answer is posted
Chat with our AI personalities
X2 (5)2 = 25 (- 5)2 = 25 An identity, almost, as any number put into this expression will yield the same value.
(5×3)÷2
A numerical expression is ' 2 + 3' A numerical equation is ' 2 + 3 = 5'.
152
When you have an algebraic expression with variables in it, you need to know the the value of each variable. The value of the expression is found by replacing the variables with their values and simplifying. For example, evaluate 2xy-3x if x=5 and y=-1. 2xy-3x = 2*5*(-1) -3*5 = -10-15 = -25.