Question

evaluate 21st question​

Answer 1

Answer:

first of all you need to factorise the quadratic expression and then and you will see that x minus 3 will cancel out and for the unit to put x is equal to 3 to solve limits

(this method is known as solving limits by factorization and you cannot put x is equal to 3 directly because it will produce 0/0 form which is indeterminate form )

Step-by-step explanation:

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