There is actually not one set answer to 4x+7y, as what it means is 4 of one value plus 7 of another. The answer depends on what the values of x and y are, due to the equation meaning 4x+7y.
For example, if x=2 and y=3, then the equation is 42+73=8+21=29.
However, as I feel I have to note, these may not be the variables you'll get.
I hope this helped!
4x + 3 doesn't factor. It is in its simplest form.
8x + 5z - 4x + 3z + 6 = 8x - 4x + 5z + 3z - 6 = 4x + 8z - 6
4x
-4x + 5 + 3x + 6 = -x + 11
16x2 + 40x + 25 = 16x2 + 20x + 20x + 25 = 4x(4x + 5) + 5(4x + 5) = (4x + 5)(4x + 5) = (4x + 5)2
If you mean 4x+y = 7 then y = -4x+7 which is a straight line equation whereas -4 is the slope and 7 is the y intercept
To find 4 times the sum of y and 7, you first calculate the sum of y and 7, which is y + 7. Then, you multiply this sum by 4 to get the final result. Therefore, the expression for 4 times the sum of y and 7 is 4(y + 7), which simplifies to 4y + 28.
16x
the answer to this is 4x + 57 (assuming that the 4x in the question is algebra)
4x^2 + 3
4x + 3 doesn't factor. It is in its simplest form.
The derivative of 2x2 + 4x + 8 is 4x+4.
(4x + 3)(4x + 3) (4x + 3)2
4x + 16 + 1 = 4x + 17 which cannot be factorised.
4x + 20y
(4x+5)(4x+5)
8x + 15