Question

alpha-beta=3,(alpha)³-(beta)³=189​

Answer 1

Answer:

I don't know sorry I can't help you

Answer 2

the question is to form a quadratic equation

${a}^{3 } - b {}^{3} = (a - b)(a ^{2} + b {}^{2} + ab)$

$3(a {}^{2} + b {}^{2} + ab) = 189$

$a {}^{2} + b {}^{2} + ab = 63 \\ (a - b) { }^{2} - 3ab = 63 \\ 3 { }^{2} - 3ab = 63 \\ - 3ab = 54 \\ ab = - 54 \div 3 = - 18$

$equation = x {}^{2} - (a - b)x + ab \\ = x {}^{2} - 3x - 18$