Question

3. (a^2- ab) - (b^3 - 2ab) - 3ab​

Answer 1

Answer:

STEP1:Equation at the end of step 1

((2ab)2) 3ab • ———————— 2a3b3

STEP2:

Equation at the end of step2:

22a2b2 3ab • —————— 2a3b3

STEP3:

22a2b2 Simplify —————— 2a3b3

Dividing exponential expressions :

 3.1    a2 divided by a3 = a(2 - 3) = a(-1) = 1/a1 = 1/a

Dividing exponential expressions :

 3.2    b2 divided by b3 = b(2 - 3) = b(-1) = 1/b1 = 1/b

Dividing exponents:

 3.3    22   divided by   21   = 2(2 - 1) = 21 = 2

Equation at the end of step3:

2 3ab • —— ab

STEP4:

Canceling Out :

 4.1    Canceling out a as it appears on both sides of the fraction line

Canceling Out :

 4.2    Canceling out b as it appears on both sides of the fraction line

Final result :

6

Answer 2

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$\blue{a { }^{2} } - 2ab - b {}^{3}$