Question

if a + b equal 8 and a square + b square equal to 40 find the value of a cube plus b cube

Answer 1

The answer is 224 ....
above is the detailed answer...

if u understand, then plz mark it as brainliest

Answer 2

Hello mate...

a+b=8(Given)
so a=8-b
a^2+b=40(Given)
a^2=40-b

Now a^3+b=?

a^3=a^2*a

so, a^2*a+b= (40-b)(8-b)+b
now just solve that