Question

Simplify : a ( a² - 2b) - b ( b² - 2a)

a (cube) + b(cube)

a (cube) - b(cube)

a (cube) + 4ab - b(cube)

a (cube) + 4ab + b(cube)
which is the answer
pls reply fasttt
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Answer 1

Answer:

$a(a {}^{2} - 2ab) - b(b {}^{2} - 2a) \\( 2a {}^{2} - 3ab) - (2b {}^{2} - 2ab) \\ 2a {}^{2} - 2b {}^{2} - 5ab$

Answer 2

Answer:

=(a2)(a2)+(a2)(b2)+(-b2)+(a2)+(-b2)+-a4+2a2b2+-b4

=a4+a2b2+-a2b2+-b4+-a4+2a2b2+-b4

2nd step,combine like terms:

=a4+a2b2+-a2b2+-b4+-a4+2a2b2+-b4

=(a4+-a4)+(a2b2+-a2b2+-a2b2)+(-b4+-b4)

=2a2b2-2b4= answer