Question

Please help!! Will fan and medal!!

Question attached in comments.

Answer 1

@Plasmataco

Answer 2

@RhondaSommer

Answer 3

one sec

Answer 4

\[7y^2-\left(-5y-\left(4y^2-8y\right)\right)-\left(2+\left(17y+2\right)\right)\]

Answer 5

remove parenthesis \[=7y^2-\left(-5y-\left(4y^2-8y\right)\right)-\left(17y+2+2\right)\]

Answer 6

simplify the 2+2\[=7y^2-\left(-5y-\left(4y^2-8y\right)\right)-\left(17y+4\right)\]

Answer 7

\[-5y-\left(4y^2-8y\right):\quad 3y-4y^2\]\[=7y^2-\left(3y-4y^2\right)-\left(17y+4\right)\]\[-\left(3y-4y^2\right):\quad 4y^2-3y\]\[=7y^2-3y+4y^2-\left(17y+4\right)\]\[-\left(17y+4\right):\quad -17y-4\]\[=7y^2-3y+4y^2-17y-4\]\[=11y^2-20y-4\]