Question

Factorisr
(ab-a-b+1) = ?
Please answer fast. ​

Answer 1

Answer:

• ab - a - b + 1 = (a - 1)(b - 1)

Step-by-step explanation:

Given,

• ab - a - b + 1

To Find,

• The Factors of ab - a - b + 1.

Solution,

→ ab - a - b + 1 = ab - a - b + 1

→ ab - a - b + 1 = a(b - 1) -1(b - 1)

→ ab - a - b + 1 = (a - 1)(b - 1)

Verification,

→ ab - a - b + 1 = (a - 1)(b - 1)

→ ab - a - b + 1 = a(b - 1) -1(b - 1)

→ ab - a - b + 1 = ab - a - b + 1

→ LHS = RHS

Required Answer,

• ab - a - b + 1 = (a - 1)(b - 1)

Answer 2

Given,

The expression = $\[(ab-a-b+1)\]$

To solve,

Factories the expression.

Solution,

We know that factorization is the process of breaking expression to make a single term that, multiplied together, give us that original expression.

$\[\begin{array}{l} \Rightarrow ab - a - b + 1 \\ \Rightarrow a(b - 1) -1(b - 1) \\ \Rightarrow (a - 1)(b - 1)\end{array}\]$

Hence, the factorization of $\[(ab-a-b+1)\]$ is $\[(a - 1)(b - 1)\]$.