Question

Using suitable identity, evaluate (X+5) (X+7)​

Answer 1

Step-by-step explanation:

We know the identity: (x+a)(x+b)= x^2+(a+b)x+(ab)

(put the given values)

=x^2+(5+7)×x+(5×7)

=x^2+12x+35

This is the required ans frnd....

Answer 2

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