Question

If x=0.28,then find x^3?​

Answer 1

Answer:

If x= 0.28 , then find x^3

Step-by-step explanation:

x= 0.28

x= (0.28)^3

x= 0.28 × 0.28 × 0.28

x= 0.21952

Answer 2

Answer:

Step-by-step explanation:

Given :- x = 0.28

To Find :-

x³

Solution :-

x = 0.28

Let us put it in the addition form for easy calculation:

x = (0.20 + 0.08)

Now, on cubing both sides, we get:

x³ = (0.20 + 0.08)³

Let us use the formula: (a + b)³ = a³ + b³ + 3ab (a +b) in RHS. No changes to be done on the LHS as we have to calculate the LHS. So, we will leave the LHS as it is i.e., x³

x³ = (0.20)³ + (0.08)³ + 3 * (0.20) * (0.08)(0.20 + 0.08)

x³ = 0.008 + 0.000512 + 0.048 * 0.28

x³ = 0.008 + 0.000512 + 0.01344

x³ = 0.021952

Therefore, x³ will be 0.021952.(Ans.)

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