use suitable identities ot find the following products (3x+4) (3x-5)
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Answered by
0
Answer:
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
Answered by
1
Answer:
By Identity
(3x)² + (4-5)x + 4★-5
9x² - x -20
...... answer of this
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