Use suitable identity and find the product (3x+7) (3x-3)
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Answer:
We know : (x+a)(x+b) = x²+(a+b)x + ab
We have (3x+7)(3x-3) = (3x)²+ 3(7-3)x + 7×(-3)
= 9x²+12x- 21
Step-by-step explanation:
hope it's helpful...
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