y squared-y-72 is an algebraic expression because it does not contain an equality sign.
No, three squared is nine. 3(squared sign) =3x3 =9
Mass squared (mass*mass)
Yes
Without an equality sign the given two terms of an expression can't be considered to be an equation.
40
It is the difference of two squares as for example: x squared-49 = (x-7)(x+7) Therefore the first term is plus and the last term is minus
square meters or meters squared: m2
Until an "equals" sign shows up somewhere in the expression, there's nothing to prove.
There are 6 sides to a rectangular prism. Two are 5x3, two are 3x2 and two are 2x5 - that means two are 15mm squared, two are 6mm squared, and two are 10mm squared. Add those up, and you get 62mm squared.
25 is the smallest two didgit squared number
Yes.