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How do you prove (3x+2)2 is equivalent to (3x+6)(3x-2)+16 i have tried expanding the brackets but I'm still really stuck thankyou in advance
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How do you prove (3x+2)2 is equivalent to (3x+6)(3x-2)+16

i have tried expanding the brackets but I'm still really stuck
thankyou in advance

User Seunghee
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(3x+2)^2=9x^2+12x+4\\\\ (3x+6)(3x-2)+16=\\ 9x^2-6x+18x-12+16=\\ 9x^2+12x+4
User Hokhy Tann
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