Question

Find the value using identities.
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a) (3x+4) (3x-5)

please give me the answer fast. it's urgent.. ​

Answer 1

Answer:

7

Step-by-step explanation:

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Answer 2

Answer:

answer

Step-by-step explanation:

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

2

+(a+b)x+ab

(3x+4)(3x−5)=(3x)

2

+(+4−5)3x+(4×−5)

9x

2

+(−1)3x+(−20)

9x

2

−3x−20