Question

27x³-30x²y+40xy²-64y³​

Answer 1

Answer:

$27 {x}^{3} - 30 {x}^{2}y + 40x {y}^{2} - 64 {y}^{3} \\ = ( {3x})^{3} + 3( {3x})^{2}(-4y) + 3(3x)({ - 4y}^{2}) + { - 4y}^{3} \\ using \: formula \: we \: get \\ ( {3x})^{3} - ({ 4y})^{3} \\ a = 3x \: and \: \\ b = - 4y$