Question

solved this a (a -1) -b (b-1)​

Answer 1

$= {a}^{2} - a - {b}^{2} + b$

Answer 2

Answer:

$\Huge \boxed{a-1-b^2+b}$

Step-by-step explanation:

To solve this problem, first you have to use the distributive property of $\displaystyle a(b+c)=ab+ac$. Remember to solve this problem, you have to identify the variable of a.

Distributive property can be used to expand expressions by multiplying a number across addition and subtraction, creating an equivalent expression.

First, expand the form to use distributive property.

$\displaystyle -b(b-1)=-b^2+b$

$\displaystyle (a-1)-b^2+b$

Next, solve.

$\large \boxed{a-1-b^2+b}$

$\large\boxed{\textnormal{In conclusion, the final answer is \boxed{a-1-b^2+b}}}.$