4/b-3 + 3/b = -2b/b-3
b = 1 or b = -4.5
A3+b3
It equals b3.
(a+b)3=a3+b3+3ab(a+b) a3+b3=(a+b)3-3ab(a+b) a3+b3=(a+b)(a2-ab+b2)
0
(a -b) · (a2+ab+b2) = (a3+a2b+ab2) - (a2b+ab2+b3) = a3 -b3 (a+b) · (a2 -ab+b2) = (a3 -a2b+ab2) +(a2b -ab2+b3) = a3+b3 More generally: (a ∓ b) · (an-1 ±an-2b +an-3b2 ±an-4b3 +±...+a(±b)n-2 +(±b)n-1) = an ± bn. The mixed terms cancel out themselves.
A3+b3
There are no whole solutions
8
(a + b+ c)3 = a3 + b3 + c3 + 3a2b + 3ab2 + 3b2c + 3bc2 + 3c2a + 3ca2 + 6abc
It has no special name. It is just the plus sign.
(a3 + b3)/(a + b) = (a + b)*(a2 - ab + b2)/(a + b) = (a2 - ab + b2)
kutta
It equals b3.
(a+b)3=a3+b3+3ab(a+b) a3+b3=(a+b)3-3ab(a+b) a3+b3=(a+b)(a2-ab+b2)
5 + b3 cannot be solved since it is not an equation. It is simply a combination of 2 terms.
That is not a formula. Formulas must start with an equals sign, have an operation like a plus or minus etc., in it or have a function. So it could be something like this, which adds the content of cell b3 and d7 together: =b3+d7 If you replace the plus with another sign, you could do other kinds of calculations. If you were adding all cells in the range from b3 to d7, you could use the SUM function like this: =SUM(b3:d7) Lots of other functions, such as AVERAGE or COUNT or MAX could also use the same structure, so for example: =AVERAGE(b3:d7)
The plus sign. + To add values in the cells A3 and B3 you would do the following: =A3+B3