Question

solve by using suitable identities:(3x-5)​

Answer 1

Answer:

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Step-by-step explanation:

the answer will be 3x - 5

bcz the brackets will be cut off and only this will remain so answer is 3x-5

Answer 2

Step-by-step explanation:

Suitable identity is (x+a)(x+b)=x2+(a+b)x+ab

(3x+4)(3x−5)=(3x)2+(+4−5)3x+(4×−5)

9x2+(−1)3x+(−20)

9x2−3x−20