If x=5, then find the value of the following algebraic expression.
6x+2
We have 6x+2
Now substitute the value of x=5
65+2⇒30+2⇒32
Hence the value of the expression is 32
x2+4x
If x=-2, then find the value of the following algebraic expression.
4-3x
If x=-2, then find the value of each of the following algebraic expressions.
2x-x2