Factorise: ( a²- 1) ( b²- 1) + 4ab
pls give a detailed explanation
pls answer it

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Hi my lil bunny!

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Let's simplify step-by-step.

Distribute:

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Have a great day/night!

❀*May*❀

a²b² - a² - b² + 4ab + 1

Step-by-step explanation:

( a²- 1) ( b²- 1) + 4ab

(a²b² - a² - b² + 1) + 4ab

a²b² - a² - b² + 4ab + 1

up

step-by-step explanation:

the orientation of the parabolas can easily be found by analysing the power of x and y and their signs. if x is squared , parabola opens up and also if its coefficient is negative it opens down. if y is squared , the parabola opens right and also if its coefficient is negative it opens left. however in order to do the above analysis our equation must be in standard form .

our parabola is

which is not standard form of any parabola . hence we square on both hand side and convert it into standard form.

hence we see that x is squared and its coefficient is non negative . there for it opens up.

step-by-step explanation: