Question

If the Sum and the
product of two numbers
are 8 and 15 is respectiveles
find the sum of their cubes.​

Answer 1

Answer:

sum= 8

product=15

their cubes are

8 == 512

15== 3375

sum of cubes=512+3375

=3887

Answer 2

Answer:

x^3+y^3=152

Step-by-step explanation:

Let numbers be x and y

We know,

(x+y)=8

,xy=15

We want sum of their cubes i.e. x^3+y^3

X^3+ y^3=(x+y)^3-3xy(x+y)

x^3+y^3 =(8)^3 - 3*15*(8)

x^3+y^3= 512-45(8)

x^3+y^3=512-360

x^3+y^3=152

therfore sum of their cubes is 152

Hope it helps

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