Answer: (x+7)(7x+2)
Step-by-step explanation:
Answer: 7x²+51x+14=(x+7)(7x+2)
[tex]7x^2+51x+14=\\7x^2+49x+2x+14=\\(7x^2+49x)+(2x+14)=\\7x*(x+7)+2*(x+7)=\\(x+7)*(7x+2)[/tex]
