Twice the sum of 'x' and 'y' . . . 2(x+y)
The sum of twice 'x' and 'y' . . . (2x+y)
2(x+y)=2x+2y
(2)x=Y-4
what is 10 squared DOES NOT equal what?
Write the following as an algebraic expression using x as the variable: The sum of a number and -8
twice a number can be 2x and six less than it is 2x-6.
2(x+y) is twice the sum of x and y, and 2x+y is the sum of twice x and y
2(x+y)=2x+2y
2(2+Y)
The difference between a number x and twice y is equal to fifteen.
y=2x
(2)x=Y-4
2.(2+y) = 2.2 + 2.y = 4 + 2y
Twice-differentiable simply means that the function can be differentiated twice. eg. If y = x^5 (^5 means to the power of 5). Then y' = 5x^4 (i.e. differentiating once) Then y'' = 20x^3 (differentiating twice)
Write the following as an algebraic expression using x as the variable: The sum of a number and -8
what is 10 squared DOES NOT equal what?
2(xy)
twice a number can be 2x and six less than it is 2x-6.