Find(3x+4)(3x+4) using the apropriate identity
Answers
Answered by
2
Answer:(3x+4)(3x+4)
= (3x+4)^2
(3x)^2 +(4)^2 +2(3x)(4)
= 9x^2 +16 + 24x
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
Answered by
8
Answer:
(3x+4)(3x+4)
= (3x+4)^2
(3x)^2 +(4)^2 +2(3x)(4)
= 9x^2 +16 + 24x
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