Question

pls solve this problem​

Answer 1

We know,

${x}^{3} - {y}^{3} = (x - y)( {x}^{2} + {y}^{2} + xy) \\ \\ → {8x}^{3} - {125y}^{3} = (2x - 5y)( {4x}^{2} + {25y}^{2} + 10xy )$

So,

${(2x - 5y)}^{2} = {13}^{2} \\ {4x}^{2} + {25y}^{2} - 20xy = 169 \\ {4x}^{2} + {25y}^{2} - 20(5) = 169 \\ {4x}^{2} + {25y}^{2} = 169 + 100 \\ {4x}^{2} + {25y}^{2} = 269$

Now,

Putting the values, we get,

$= 13(269 + 50) \\ = 13(319) \\ = 4147$

$<marquee> HOPE IT HELPED$

$<marquee> MARK BRAINLIEST$

Answer 2

hope it helps...........