Question

If a + b equal to 7 then find the value of (a-4)³+(b-3)³

Answer 1

Answer:

Answer is Zero

Step-by-step explanation:

We have

${x}^{3} + {y}^{3} = (x + y) \times ( {x}^{2} + {y}^{2} - xy)$

So, in this case x and y are (a-4) and (b-3) respectively.

so x + y = a - 4 + b - 3

x + y = a + b - 7

but a + b = 7 (given)

so,

x + y = 0

Thus, the first term in the formula is zero. So, anything multiplied to it holds no value to the final answer. Answer remains zero.