if a + b equal 8 and a square + b square equal to 40 find the value of a cube plus b cube
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Answered by
62
The answer is 224 ....
above is the detailed answer...
if u understand, then plz mark it as brainliest
above is the detailed answer...
if u understand, then plz mark it as brainliest
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Answered by
15
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
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
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