Question

Hi I got this wrong and I need help and need someone to teach me how to get it right thank u

Answer 1

`4y^2+14y+34`

Step-by-step explanation:

Here, we want to simplify the polynomial and put in standard form

We start by expanding the middle term as follows:

`\begin{gathered} 3y^2+(y+7)^2\text{ - 15} \\ 3y^2+y^2\text{ + 14y+49-15} \\ 4y^2+14y+34 \end{gathered}`

Writing in standard form simply means arranging from the highest power (exponent) to the lowest