Answer: [tex]x^2+2x+1=36[/tex]
Step-by-step explanation:
[tex]x^2+2x-35=0[/tex]
add 35 on both sides.
[tex]x^2+2x-35+35=0+35[/tex]
[tex]x^2+2x=35[/tex]
take the value of b (2) divide it by 2 and square it.
[tex]x^2+2x+(\frac{b}{2})^2 =35+(\frac{b}{2})^2[/tex]
[tex]x^2+2x+(\frac{2}{2})^2 =35+(\frac{2}{2})^2[/tex]
[tex]x^2+2x+(1)^2=35+(1)^2\\x^2+2x+1=35+1\\x^2+2x+1=36[/tex]
