Factorise 6ab-4b+9a-6
Answers
2b(3a-4) (9a-6)
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Step-by-step explanation:
A number or algebraic expression can be written as a product of other numbers or algebraic expressions. These numbers or algebraic expressions respectively are called factors. For example, 30 = 10 x 3. Here 10 and 3 are factors of 30. However, there can be many other factors of 30.
Similarly, 3ab is an algebraic expression and 3ab = 3 x a x b. Here, 3, a, b are factors of 3ab. These are called irreducible factors of this algebraic expression as they cannot be factored further.
We can easily find factors of algebraic expressions that are written in product form. For example, 6x2, 7yx2, 2x(1+y) all are in product form and we can easily state their factors. But if an algebraic expression is like a2 + b + 3 then we need a certain methodology to find its factors.